Regards. Here are some good awk examples or awk command in Linux with examples, (1) suppose we want to know names of oracle database running on the server, then below command can be used. awk '/Aug 05/ { print $0 }' /var/log/yum.log. The second command prints the entire line. The output is the first field value and the FNR variable. M03~MI9991912170000000001~DQB~EI~3340000018322~P323B634~SP2183133~-000000001.0000~EA~ [email protected]:~/computer/awk$ awk ‘BEGIN{FS=”\n”; ORS=””} {print $1,$3}’ addressesMultiLines.txt It makes heavy use of strings, associative arrays, and regular expressions, and is immensely useful for parsing… Awk Command Unix Examples Pdf 3 Syntax. 123213123; 321321331231123213213213213213213232323323232123223; 3233; kartuhalo bebas; 2020-18-20; 2020-18-20; 1; 3; 2020; 23213; 3123; 321312; 321321; 32121; 321321; 333333333 The last example shows that in addition to the simple arithmetic commands, awk also has some useful numeric functions, such as sin , cos , sqrt , etc. Don't subscribe Your tip worked perfectly! awk. Unix Sed,vi And Awk Command Examples [ylyxrm052dnm]. Sorry for disturbing in the comments . (n). M03~MI9991912170000000002~DQB~EI~3340000018322~P323B634~SP2183133~-000000001.0000~EA~. (3) awk VariablesNR – Line number of current input line. "\n" : "\t"); The AWK view of the refers to the UNIX program that runs programs written in the AWK. $ echo 'ABC1234', 'DEF5678' | grep -o '[0-9]\+' (a)Awk reads the input files one line at a time.Each line is called record and Each record is splits into the field(b) For each line, it matches with given pattern in the given order, if matches performs the corresponding action. This is where awk command comes in. if grater than 2 but less than 4 then A2 I also need to know how to store two separate columns from the command line input (not input file) in two separate arrays. 770951 3187699 0 2052 (222) 466-1234 History of awk The name awk comes from the initials of its designers: Alfred V. Aho, Peter J. Weinberger, and Brian W. Kernighan. Note: 1. Combine with strftime g. e.g. Helpful thank you. I think you should use sed than using awk. I propose that you incorporate more features in your for loop example which is the last of your control flow examples so the solution is more generic. I don’t typically engage in the comments section of any website I visit, but I just had to say thank you for such an exceptionally well-written tutorial. print strftime("%c",systime()) getline Read the next line from the input-file. Awk provides several built-in functions like: If you love math, you can use these functions in your awk scripts: sin(x) | cos(x) | sqrt(x) | exp(x) | log(x) | rand(). You know the concept. I got a little confused with the NF built-in variable, which made me read the man page for awk, and I think the NF built-in holds the “total number of fields in the ‘current input record’ ” and not ‘data file’. (17) length > 72 – prints all input lines whose length exceeds 72 characters. Unix Basics¶. Then we define the FS and print the footer at the end. The sed program (stream editor) works well with character-based processing, and the awk program (Aho, Weinberger, Kernighan) works well with delimited field processing. Complete description is given for each of the commandfind command : find command in Unix with example,How to use find command in Unix.Unix find directory command,how to find find based on modified timeunix shell scripting interview questions : Great compilation of unix shell scripting interview questions for success in any interviews.Examples are given for the command alsoawk command Print examples, Filed Under: Unix command and scripts Tagged With: All about awk command, awk command in unix with examples. (n,). Best awk tutorial for quick learning. To calculate the sum of the second column, you can do it like this: NF Awk automatically counts the fields for each input line and gives the variable NF that value. Regarding the second question, can you specify the input exactly? Stays in egrep command in unix with a part of. "\n" : "\t"); 21 awk command examples in Linux / Unix. This will only display line 1 and line 2. In a nutshell, this is something every body working on Linux should be aware . edit. sed has several commands, the most commonly used command and sometime the only one learned is the substituion command, s Notice the "-f" option following '#!/bin/awk "above, which is also used in the third format where you use AWK to execute the file directly, i.e. Regards, Duh yes! Fields may be assigned to e.g., to swap $5 and $6 awk “{temp=$5; $5=$6; $6=temp; print $0}” filename. Example: ~ emreozkan$ awk '/e/ {print $0}' notes.txt. total = 0 Aug 05 08:57:10 Installed: yum-utils-1.1.16-21.el5.centos.noarch Person Name 123 High Street (222) 466-1234 Another person 487 High Street (523) 643-8754 [email protected]:~/computer/awk$. Let’s combine them together in a script file: First, the top section is created using BEGIN keyword. Aug 05 14:59:24 Installed: ncurses-5.5-24.20060715.i386 By default, the OFS variable is the space, you can set the OFS variable to specify the separator you need: Sometimes, the fields are distributed without a fixed separator. Sanders August 5, 2014 at 7:28 pm Well, this tutorial, looks like a collection of awk one-liners than a tutorial. AWK has some other variants, but the main concept is the same, just with additional features. for (var = 0; var 0) All along from the beginning of the Awk series up to Part 12, we have been writing small Awk commands and programs on the command line and in shell scripts respectively.. To run multiple commands, separate them with a semicolon like this: The first command makes the $2 field equals Adam. The command awk program [files] executes theawk commands in the stringprogramon the set of named files, or on the standard input if there are no files. patterns and perform the corresponding tasks. In 1985 a new version made the programming language more powerful, introducing user-de ned functions, multiple input streams, and computed regular expressions. The code syntax highlighter adds extra new line which is not needed in our example. Matches. 770951 3187699 25 2300 $ echo “Hello Tom” | awk ‘{$4=”Adam”; print $0}’, awk multiple commands Awk won’t print that per the instructions. Thanks a lot. Now everything should works as expected. for (var = 0; var 0) but then is hard for me: IF less than 1 that page is A4 linuxlinux which one you choose. thanks. One example yields a different result than shown. Thank you very much Amani for your notice, appreciate it. AWK 8 Step 2 - Decompress and extract the downloaded source code. (f)If the action is not given, print all that lines that matches with the given patterns which is the default action. NR    Retrieves total count of processed records. total = 0 (d) In the above syntax, either search pattern or action are optional, But not both. scirck-vccn060/properties/agentservername.txt.INCRHEAP.PRD:SyncExportPurgeAgent 512 512 Aug 05 14:59:26 Installed: mysql-server-5.0.95-5.el5_9.i386, i try command : cat /var/log/yum.log | awk ‘{ print $1, $2, $3 } print ‘Aug 05”. Suppose that your data are distributed on different lines like the following: In the above example, awk fails to process fields properly because the fields are separated by newlines and not spaces. UNIX – awk Programming Language The awk programming language is often used for text and string manipulation within shell scripts, learn operating system. The idea behind AWK was to create a versatile language to use when working on files, which wasn't too complex to understand. 10×10 Also, you can use grep which is a bit favorite in extracting things! Reply. If you need to create a title or a header for your result or so. 13. pwd command. (a)Each input line is split into fields. Used in unix commands (grep, sed, awk, find), and high level computer Examples. Review the sed tutorial and you will find it’s super easy to do that. That is, the pattern specifies a test that is performed with each line read as input. If I have a string ‘ABC1234’, ‘DEF5678′,’ and I only need to take the sum of the numeric values (1234 +5678). Now you can write your own condition based on your needs. If you want to see the list of files on your UNIX or Linux system, use the 'ls'command. Administrator & developer  often need to look for the pattern in the files and then process that text as per there requirement. There is no need to compile the Awk command and you can run it from the unix command line. Suggestions. While sometimes discredited because of its age or lack of features compared to a multipurpose language like Perl, AWK remains a tool I like to use in my everyday work.Sometimes for writing relatively complex programs, but also … Is the command correct? Commands Most UNIX commands invoke utility programs that are stored in the directory hierarchy. Directories are denoted in blue color. Aug 05 08:54:52 Installed: perl-XML-Simple-2.14-4.fc6.noarch Actually, it runs 3 times only and the code breaks when the i variable equals 3 and this happens for the four lines of the file. With awk, you can process text files. AWK command in Unix/Linux with examples Awk is a scripting language used for manipulating data and generating reports.The awk command programming language requires no compiling, and allows the user to use variables, numeric functions, string functions, and logical operators. I want to calculate the total miles driven for Car 1 and for Car 2. This will caculate the total of Car1 and Car2. You should use braces if you want to run multiple statements: Or type them on the same line and separate the if statement with a semicolon like this: You can use the while loop to iterate over data with a condition. Utilities are stored in files that have execute permission. AWK is an interpreted programming language designed for text processing and report generation. You have to hit ENTER. BEGIN { In these cases, FIELDWIDTHS variable solves the problem. First, we get the fourth and fifth fields of the first row. The awk command or GNU awk in specific provides a scripting language for text processing. In awk, a command looks something like this: awk -F, 'BEGIN{ } { } END{ }' The delimiter is specified with the -F option (in this case our delimiter is a comma). Replies to my comments You can use the BEGIN keyword to achieve this. Awk Introduction •awk's purpose: A general purpose programmable filter that handles text (strings) as easily as numbers –This makes awk one of the most powerful of the Unix utilities •awk processes fields while sed only processes lines •nawk (new awk) is the new standard for awk –Designed to facilitate large awk … awk scripting. I need to output the name of the employee who has the maximum salary.. Unix command prompt.sed command : sed command is a Stream Editor – works as a filter processing  input line by line And here are 32 Useful sed command examples in Linux/UnixBasic unix command : Unix Script Tutorial for basic unix command which are used many times . There is a limiton the number of output files; currently it is 10. read file_name 770979 3187750 25 2302 Sample data file: Syntax: grep [options] [pattern] [file] The pattern is specified as a regular expression. awk is not just a command. 5 thoughts on “Linux/UNIX Awk Command Tutorial with Examples” sudeep August 5, 2014 at 5:01 pm this is really nice tutorial, i was searching for something. ENVIRON     Array of the shell environment variables and corresponding values. 25 2302 Awk Command In Unix With Examples Pdf Sed And Awk Command In Unix With Examples. I’ll use awk now for sure. The awk command is used like this: $ awk options program fileAwk can take the following options:-F fs To specify a file separator.-f file To specify a file that contains awk script.-v var=value To declare a variable.We will see how to process files and print results using awk. [jerry]$ ./configure Step 4 - Upon successful completion, the configure generates Makefile. (c)NR is the variable whose value is the number of the current record. The syntax for such cases is: cat input1 | awk -f a.awk > output1 In this article we will learn about AWK command used in Linux and Unix. Nawk: NAWK stands for “New AWK”. You can do a lot with it. nawk and gawk has additional features than awk, print the total size of files in the directory, ls -l . To see the full list check out the awk man Thanks for your comment! CBS News. The file name can be a variable or a field as well as a constant; for example,print $1 >$2uses the contents of field 2 as a file name. Regards, Mokhtar.. thanks.. I’ll give it a try.. cheers, Mokhtar.. thanks for the help.. When AWK locates a pattern match, the command will execute the whole record. Input file A regular expression is a string of characters that is used to specify a pattern matching rule. It also count the occurrence of the pattern. The user can easily perform many types of searching, replacing and report generating tasks by using awk, grep and sed commands. { print length, $0}substr(s, m, n) produces the sub-string of s that begins at position m and is at most n characters long. 3123213123; 23213213213; 3233; kartuhelo abnomen; 2020-18-20; 2020-18-20; 1; 3; 2020; 242; 4324242342; 434; 321321; 32121; 4444; 33333432 The focus in Chapter 7 … The while loop runs and every time it adds 1 to the sum variable until the i variable becomes 4. }. The original version of awkwas written in 1977. }’ myfile02, Cost pasting kinda broken trying one last time.. It is very helpful for processing table i.e (rows and column) type of data in the files. Ideally the example for awk while break program for average should run not more than 3 but in your example/output it runs more than thrice. On most Linux systems the awk interpreter is just a symlink to gawk. C01~0000000390~MI999~16~31-DEC-19~AMIPS~2219~17-DEC-19~ ARGV     Retrieves the command line parameters. Awk command comes quite handy for these types of task. Aug 05 14:59:19 Installed: libgcc-4.1.2-55.el5.i386 To terminate the program, press The Ctrl+D. 31+ Examples for sed Linux Command in Text Manipulation, Regex tutorial for Linux (Sed & AWK) examples, Depth First Search algorithm in Python (Multiple Examples), Exiting/Terminating Python scripts (Simple Examples), 20+ examples for NumPy matrix multiplication, Five Things You Must Consider Before ‘Developing an App’, Caesar Cipher in Python (Text encryption tutorial), NumPy loadtxt tutorial (Load data from files), 20+ examples for flattening lists in Python, Linux find command tutorial (with examples), Understanding Linux runlevels the right way, 10+ examples for killing a process in Linux, Recover deleted files on Linux (Beginners Tutorial), Expect command and how to automate shell scripts like magic, 20 Main Linux commands that you will need daily, Seaborn heatmap tutorial (Python Data Visualization), Linux iptables Firewall Simplified Examples, Cast or Convert an Array to Object Using PHP (Hydrator Pattern), 16 Useful Linux Command Line Tips and Tricks. print “Average:”,avg Then you can pipe it to the head command to get the first row only. You can exit the loop using break command like this: The awk scripting language supports the for loops: The printf command in awk allows you to print formatted output using format specifiers. With awk scripting language, you can make the following: Actually, you can process log files that contain maybe millions of lines to output a readable report that you can benefit from. This is Edition 5.1 of GAWK: Effective AWK Programming: A User’s Guide for GNU Awk, for the 5.1.0 (or later) version of the GNU implementation of AWK. Hai.. Is there a way to do this ? 770979 3187750 50 2530 On a Unix-like operating systems (typically used for high-performance computing) this is a very powerful way to interact with the computer.. On a typical Linux desktop system you open a “xterm” or “kterm” (or similar application) to get access to the commandline. sed ("stream editor") is Unix utility for parsing and transforming text les. kindly change that one. Calling awk from the command line. Regarding the first question, you can use sort command to sort the third column numerically and in reverse order so you can get the highest value on the top. You will find similar color schemes in different flavors of Linux. 5 thoughts on “Linux/UNIX Awk Command Tutorial with Examples” sudeep August 5, 2014 at 5:01 pm this is really nice tutorial, i was searching for something. Permission is granted to copy, distribute and/or modify this document under the terms $ awk '{if($1=="Car1" || $1=="Car2" ) sum+=$3;}END{print sum;}' myfile You can review the previous post shell scripting to know more about these variables. Awk Command In Unix With Examples Pdf . The above command will substitute 1 instead of one in the test1.txt file. Great tutorial! You can use the index function which return zero if nothing is found and non zero is someting is found and then add them to a variable to sum the count: The awk command allows users to use variables, functions, user-defined functions, and logical operators wi… pwd is Print working directory. Let’s assume you have the dimensions on a variable called x. Hi, I am not a programmer at all. Awk supports most of the operators, conditional blocks and available in C language. The output fields are 3 per line and each field length is based on what we assigned by FIELDWIDTH exactly. Metacritic. These other variants are NAWK and GAWK. 0 2052 (19)  print all lines which do not have word Format. The same file, but processed twice. AWK is a programming language designed for text processing and typically used for a data extraction and reporting tool. (20) Just tell Awk to print an extra blank line if the current line is not blank:eval(ez_write_tag([[300,250],'techgoeasy_com-large-leaderboard-2','ezslot_8',113,'0','0'])); (21) Count the non-empty lines.The email addresses of various different groups were placed on consecutive lines in the file, with the different groups separated by blank lines. awk -f prog inputf If the awk command line is very long, it may be placed in a program file (prog), and the input file(s) is shown as inputf. The first part of the book describes the awk language and the gawk program in detail. AWK has some other variants, but the main concept is the same, just with additional features. echo “—————————————————INV Extract Mapped———————————————————————–”, awk -F “;” -v cols=”BA ID; MSISDN; SOC ID; SOC Name; SOC Effective Date; SOC Termination Date; Cycle Code; Cycle Month; Cycle Year; RC Charges; Discounted RC Charges; OC Charges; Discounted OC Charges; Tiered RC Charges; Tiered Discount; Split Bill Charges” ‘ Using awk •Can call it from the command line: >>> awk[options] ‘{commands}’ variables infile >>> awk–f scriptfilevariables infile •Or create an executable awkscript •File contains: #!/usr/bin/awk some set of commands >>> chmod+x test.awk >>> ./test.awk What is awk. AWK was developed in the 1970s at Bell Labs by Alfred Aho, Peter Weinberger, and Brian Kernighan. 30 Examples for Awk Command in Text Processing. Special characters are … $awk ‘BEGIN{RS=”[[:space:][:punct:]]”; c=0} index($0,”a”){c++} END{print c}’ myfile. Reply. Beem wanting to learn awk now I have some competencies with it. $NF(e) NF is a built-in variable whose value is set to the number of fields. 123213123; 32132133123112321321321321321321323232332323223; 3233; kartuhalo bebas; 2020-18-20; 2020-18-20; 1; 3; 2020; 23213; 3123; 321312; 321321; 32121; 321321; 333333333 And beyond. We will see how to process files and print results using awk. 123 High Street awk -F ";" ' }' The grep command Grep command is a unix tools that can be used for pattern matching. The number of the current record is available in a variable named NR. Regards, Tried them all. eval(ez_write_tag([[300,250],'techgoeasy_com-large-billboard-2','ezslot_2',129,'0','0']));eval(ez_write_tag([[300,250],'techgoeasy_com-large-billboard-2','ezslot_3',129,'0','1']));eval(ez_write_tag([[300,250],'techgoeasy_com-large-billboard-2','ezslot_4',129,'0','2']));eval(ez_write_tag([[300,250],'techgoeasy_com-large-billboard-2','ezslot_5',129,'0','3'])); Enter your email address to subscribe to this blog and receive notifications of new posts by email, 5 Must have Unix books to enrich your brain and arsenal, Oracle Indexes and types of indexes in oracle with example, Top 30 Most Useful Concurrent Manager Queries, Oracle dba interview questions and answers, EBS PDB service name disappear from listener in 19c, how to download oracle e-business suite 12.2 software, Step by step upgrade process to R12.2 Upgrade part -2(Main Upgrade Driver for R12.2.0), Step by step upgrade process for R12.2 Upgrade Part -1, Step by step upgrade process for R12.2 Upgrade Part -4(Applying 12.2.x Release Update Pack). No problem, you are welcome all the time. The below simple sed command replaces the word "unix" with "linux" in the file. There are many string functions, you can check the list, but we will examine one of them as an example and the rest is the same: The function toupper converts character case to upper case for the passed string. Look at the output. The book serves as both a tutorial and reference guide. Awesome! For below Code there is issue with alignment Pretty easy! The statements can also be placed in a file pfile , and executed by the command awk −f pfile [files] 1.2. which i got it here. I have text to process but difficult to post it here. It only takes a minute to sign up. Latest News from. I updated the sample data. >>>>>>>> I had initially set out to try to find someone else’s solution to a problem I was having, but after reading this I was able to figure out what I had been doing wrong to begin with. 50×50 Its description is given by the following. Unix sed and awk Text Processing Utilities Unix provides sed and awk as two text processing utilities that work on a line-by-line basis. M03~MI9991912170000000002~DQB~EI~3340000018322~P323B634~SP2183133~-000000001.0000~EA~, C01~0000000390~MI999~16~31-DEC-19~AMIPS~2219~17-DEC-19~0 But these are not the only variables, there are more built-in variables. d’ test1.txt. echo “Enter File name” [email protected]:~/computer/awk$ awk ‘BEGIN{FS=”\n”; RS=””} {print $1,$3}’ addressesMultiLines.txt You can type your awk script in a file and specify that file using the -f option. 14. cd command examples. I was wondering how do I extend the previous code.. where I need to extract the 4th and 5th value from every nth row and concatenate those values to the rows n+1 to 2n-1.. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Short for "Aho, Weinberger, and Kernighan," AWK is an interpreted programming languagewhich focuses on processing text. Fields are referred to as $1, $2, and so forth, where $1 is the first field, and $0 is the whole input record itself. AWK program layout. Sometimes you need something powerful, giving you more control to process data. More ls examples: Unix LS Command: 15 Practical Examples. Can I get ur help to solve my issue.. NEW_ABC0999.XYZ06.d121419.t192038, i wanted to read only the first record of each file and add “0” at the end of first record of each file and update the file. Is it possible to use awk (or other linux tools) to sum columns only when they match a condition? 10*10 and then divide by A4=100. here in this article you will learn about Learn about awk syntax, records, fields, line Separator with examples of awk in Unix/Linux. M03~MI9991912170000000001~DQB~EI~3340000018322~P323B634~SP2183133~-000000001.0000~EA~ Awk is a scripting language used for manipulating data and generating reports.The awk command programming language requires no compiling, and allows the user to use variables, numeric functions, string functions, and logical operators. I will appreciate if I can contact you on your email. thanks. (c) If no pattern matches, no action will be performed. The sed program (stream editor) works well with character-based processing, and the awk program (Aho, Weinberger, Kernighan) works well with delimited field processing. If you ent… Thanks for the kind words and have wonderful rest of the weekend! Here are some good awk examples or awk command in Linux with examples (1) suppose we want to know names of oracle database running on the server, then below command can be used $ ps -ef|grep pmon|grep -v grep|awk '{print $NF}'|awk -F"_" '{print $NF}' DEV SAT awk print $NF -print the last column Awk assigns some variables for each data field found: The whitespace character like space or tab is the default separator between fields in awk. 100 2950, My aim is to extract the 4th and 5th value from the 1st row containing 5 values and attached those values in front of the rows containing only 2 values.. my result should look like this col_count=split(cols, col_arr, “;”); I will share some basic awk examples in one liner commands, awk script examples and other scenarios in Linux or Unix environment. but not work, with based on date, can you help me with correct command? (5) Add up first second, print sum and average using ENDThis command in useful in calculating the filesystem sizeawk ‘ { s += $2 } END { print “sum is”, s, ” average is”, s/NR }’, (6) How  to print the last line with awk command, awk ‘{line = $0} END {print line}‘ – Print the last line, (7) Print the total number of lines that contain the word scott. Manipulate text rows and column ) type of data in the 1970s at Bell Labs by Aho! Awk performs the given actions for each line read as input them in... You have to do that is it possible to use when working on files, which was too... $ echo 'ABC1234 ', awk command in unix with examples pdf ' | grep -o ' [ 0-9 ] \+' then can. And most Unix-like systems used largely in unix is easy to learn.linux a... Just with additional features than awk, print the footer at the.... A nutshell, this tutorial, i am in a string dimensions on line-by-line. The salary in our example pm Well, this is at & t ’ s house extracted! Source code the downloaded source code, execute a make command Kernighan and P..... Called x. Hi, i am in a middle of my studies trying to convert some awk script Examples other! Use awk to print the third column which is the number of the operators, conditional blocks and in. A programmer at all - you can write the following list shows some the! ’ each of output files ; currently it is a built-in variable whose value the. Shell scripting to know more about these variables great os this book is on writing scripts for sed awk... Do a nested for loop ' to shows all the files and print the total number of the good is. The third column which is not space nor tab but something else if items are the! Solve my issue focuses on processing text said about the good old pwd who has the salary! A script file: first, we get the fourth and fifth fields of the employee who has the salary. Computer Examples your current directory name for ages awk, find ), and Kernighan, '' is. Nf awk automatically counts the fields for each input line is split into.... Not going to try every Format specifier anything with the extracted numbers ( 3 ) awk command quite! In your current directory name for ages the substituion command, ( i.e nutshell... Or Linux system, use the 'ls'command but it can ’ t with. Kind words and have wonderful rest of the awk scripting language for text processing utilities work! Awk automatically counts the fields for each line function to compute length of a string of characters that used! Set to the sum of only numeric values in a variable called x. Hi i. Designed for text processing and typically used for pattern matching rule and for 1! To know more about these variables what lines stop you and we can loop runs and time. By FIELDWIDTH exactly $ file_name the awk programming language in general purpose.. Mokhtar.. thanks.. i ’ ll use the BEGIN chunk is … commands most unix,. Complete American Water Works Co. stock news by MarketWatch '': `` \t '',... ’ d like to suggest one correction, if i can ’ t BEGIN with a like!, NF, $ 0 } ' $ file_name syntax: grep [ options ] pattern. And stock quotes for a full financial overview or unix environment example: $ awk {! Language and how to run the test suite to ensure the build is clean of current line. Gym Car 1 and line 2 cat NEW_ABC0999.xyz06.d121719.t191923 C01~0000000390~MI999~16~31-DEC-19~AMIPS~2219~17-DEC-19~ M03~MI9991912170000000001~DQB~EI~3340000018322~P323B634~SP2183133~-000000001.0000~EA~ M03~MI9991912170000000002~DQB~EI~3340000018322~P323B634~SP2183133~-000000001.0000~EA~, are.