Sponsored Content
Full Discussion: line to column using awk
Top Forums Shell Programming and Scripting line to column using awk Post 302159147 by radoulov on Thursday 17th of January 2008 06:13:58 AM
Old 01-17-2008
Or even:

Code:
awk 'ORS=NR%3?" ":"\n"' filename


On Solaris use nawk or /usr/xpg4/bin/awk.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk to select a column from particular line number

The awk command awk -F: '{print $1}' test1 gives the first columns of all the lines in file ,is there some command to get a particular column from particular line . Any help is appreciated. thanks arif (4 Replies)
Discussion started by: mab_arif16
4 Replies

2. Shell Programming and Scripting

awk convert from line to column

i have an output like this : 012008 25760883 022008 12273095 032007 10103 032008 10115642 042007 20952798 but i would like to have it like this 012008,25760883 022008,12273095 032007,10103 032008,10115642 042007,20952798 (4 Replies)
Discussion started by: jarmouda
4 Replies

3. Shell Programming and Scripting

awk search column, print line

Hello. I've been banging my head against walls trying to search a comma delimited file, using awk. I'm trying to search a "column" for a specific parameter, if it matches, then I'd like to print the whole line. I've read in multiple texts: awk -F, '{ if ($4 == "string") print $0 }'... (2 Replies)
Discussion started by: Matthias03
2 Replies

4. Shell Programming and Scripting

awk : Remove column1 and last column in a line

Hi All, How to remove col1 and last column in a line. Please suggest some awk stuffs. Input col1 col2 col3 col4 col1 col2 col3 col4 col5 col1 col2 col3 col4 col1 col2 col3 Output Processing col2 col3 ... Processing col2 col3 col4 ... Processing col2 col3 ... Processing... (5 Replies)
Discussion started by: k_manimuthu
5 Replies

5. Shell Programming and Scripting

Counting rows line by line from a specific column using Awk

Dear UNIX community, I would like to to count characters from a specific row and have them displayed line-by-line. I have a file called testAwk2.csv which contain the following data: rabbit penguin goat giraffe emu ostrich I would like to count in the middle row individually... (4 Replies)
Discussion started by: vnayak
4 Replies

6. Shell Programming and Scripting

Awk next line as column

Hi, This forum rocks. I think this might be an easy thing, but since I am new to awk, please help me. input: x y z 1 a b c 2 d e f 3 g h i 7 output: x y z 1 a b c 2 d e f 3 (8 Replies)
Discussion started by: jacobs.smith
8 Replies

7. Shell Programming and Scripting

awk , conditional involving line and column

Dear All, I indeed your help for managing resarch data file. for example I have, data1.txt : type of atoms z vz Si 34 54 O 20 56 H 14 13 Si 40 17 O ... (11 Replies)
Discussion started by: ariesto
11 Replies

8. Shell Programming and Scripting

KSH or Awk first and last line based on column 2

Example: 10.160.101.160,0707073711,22.203.203.200 10.160.101.160,0707075132,22.203.210.249 10.160.101.160,0707085436,22.203.210.249 10.160.101.160,0707091712,22.203.221.176 10.160.101.160,0707091811,22.203.221.176 10.160.101.160,0707091845,22.203.221.176... (1 Reply)
Discussion started by: BrownBob
1 Replies

9. UNIX for Dummies Questions & Answers

awk help: how to pull phrase and one column from line above?

Hi everyone, Here's my awk statement so far: awk '/TOTAL TYPE:/{print x;print};{x=$0}' file1 >file2 'file1' has too much proprietary data in it to include here, so let's go with the output from code above. It looks like this: 123456 JAMES T KIRK D ... (2 Replies)
Discussion started by: Scottie1954
2 Replies

10. Shell Programming and Scripting

Add column to end of each line with ´awk´

Hi, I have data with approximately 300 columns. I want to add a column to the end of each column with the value "1". Is there a way that I can do this is ´awk´ without having to specify each individual column. For instance, my data looks like: pvb 1 2 3 4 5 ....... 300 fdh 3 4 5 2 4 ......... (4 Replies)
Discussion started by: owwow14
4 Replies
awk(1)								   User Commands							    awk(1)

NAME
awk - pattern scanning and processing language SYNOPSIS
/usr/bin/awk [-f progfile] [-Fc] [' prog '] [parameters] [filename]... /usr/xpg4/bin/awk [-FcERE] [-v assignment]... 'program' -f progfile... [argument]... DESCRIPTION
The /usr/xpg4/bin/awk utility is described on the nawk(1) manual page. The /usr/bin/awk utility scans each input filename for lines that match any of a set of patterns specified in prog. The prog string must be enclosed in single quotes ( a') to protect it from the shell. For each pattern in prog there can be an associated action performed when a line of a filename matches the pattern. The set of pattern-action statements can appear literally as prog or in a file specified with the -f progfile option. Input files are read in order; if there are no files, the standard input is read. The file name '-' means the standard input. OPTIONS
The following options are supported: -f progfile awk uses the set of patterns it reads from progfile. -Fc Uses the character c as the field separator (FS) character. See the discussion of FS below. USAGE
Input Lines Each input line is matched against the pattern portion of every pattern-action statement; the associated action is performed for each matched pattern. Any filename of the form var=value is treated as an assignment, not a filename, and is executed at the time it would have been opened if it were a filename. Variables assigned in this manner are not available inside a BEGIN rule, and are assigned after previ- ously specified files have been read. An input line is normally made up of fields separated by white spaces. (This default can be changed by using the FS built-in variable or the -Fc option.) The default is to ignore leading blanks and to separate fields by blanks and/or tab characters. However, if FS is assigned a value that does not include any of the white spaces, then leading blanks are not ignored. The fields are denoted $1, $2, ...; $0 refers to the entire line. Pattern-action Statements A pattern-action statement has the form: pattern { action } Either pattern or action can be omitted. If there is no action, the matching line is printed. If there is no pattern, the action is per- formed on every input line. Pattern-action statements are separated by newlines or semicolons. Patterns are arbitrary Boolean combinations ( !, ||, &&, and parentheses) of relational expressions and regular expressions. A relational expression is one of the following: expression relop expression expression matchop regular_expression where a relop is any of the six relational operators in C, and a matchop is either ~ (contains) or !~ (does not contain). An expression is an arithmetic expression, a relational expression, the special expression var in array or a Boolean combination of these. Regular expressions are as in egrep(1). In patterns they must be surrounded by slashes. Isolated regular expressions in a pattern apply to the entire line. Regular expressions can also occur in relational expressions. A pattern can consist of two patterns separated by a comma; in this case, the action is performed for all lines between the occurrence of the first pattern to the occurrence of the second pattern. The special patterns BEGIN and END can be used to capture control before the first input line has been read and after the last input line has been read respectively. These keywords do not combine with any other patterns. Built-in Variables Built-in variables include: FILENAME name of the current input file FS input field separator regular expression (default blank and tab) NF number of fields in the current record NR ordinal number of the current record OFMT output format for numbers (default %.6g) OFS output field separator (default blank) ORS output record separator (default new-line) RS input record separator (default new-line) An action is a sequence of statements. A statement can be one of the following: if ( expression ) statement [ else statement ] while ( expression ) statement do statement while ( expression ) for ( expression ; expression ; expression ) statement for ( var in array ) statement break continue { [ statement ] ... } expression # commonly variable = expression print [ expression-list ] [ >expression ] printf format [ ,expression-list ] [ >expression ] next # skip remaining patterns on this input line exit [expr] # skip the rest of the input; exit status is expr Statements are terminated by semicolons, newlines, or right braces. An empty expression-list stands for the whole input line. Expressions take on string or numeric values as appropriate, and are built using the operators +, -, *, /, %, ^ and concatenation (indicated by a blank). The operators ++, --, +=, -=, *=, /=, %=, ^=, >, >=, <, <=, ==, !=, and ?: are also available in expressions. Variables can be scalars, array elements (denoted x[i]), or fields. Variables are initialized to the null string or zero. Array subscripts can be any string, not necessarily numeric; this allows for a form of associative memory. String constants are quoted (""), with the usual C escapes recognized within. The print statement prints its arguments on the standard output, or on a file if >expression is present, or on a pipe if '|cmd' is present. The output resulted from the print statement is terminated by the output record separator with each argument separated by the current out- put field separator. The printf statement formats its expression list according to the format (see printf(3C)). Built-in Functions The arithmetic functions are as follows: cos(x) Return cosine of x, where x is in radians. (In /usr/xpg4/bin/awk only. See nawk(1).) sin(x) Return sine of x, where x is in radians. (In /usr/xpg4/bin/awk only. See nawk(1).) exp(x) Return the exponential function of x. log(x) Return the natural logarithm of x. sqrt(x) Return the square root of x. int(x) Truncate its argument to an integer. It is truncated toward 0 when x > 0. The string functions are as follows: index(s, t) Return the position in string s where string t first occurs, or 0 if it does not occur at all. int(s) truncates s to an integer value. If s is not specified, $0 is used. length(s) Return the length of its argument taken as a string, or of the whole line if there is no argument. split(s, a, fs) Split the string s into array elements a[1], a[2], ... a[n], and returns n. The separation is done with the regular expression fs or with the field separator FS if fs is not given. sprintf(fmt, expr, expr,...) Format the expressions according to the printf(3C) format given by fmt and returns the resulting string. substr(s, m, n) returns the n-character substring of s that begins at position m. The input/output function is as follows: getline Set $0 to the next input record from the current input file. getline returns 1 for successful input, 0 for end of file, and -1 for an error. Large File Behavior See largefile(5) for the description of the behavior of awk when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes). EXAMPLES
Example 1 Printing Lines Longer Than 72 Characters The following example is an awk script that can be executed by an awk -f examplescript style command. It prints lines longer than seventy two characters: length > 72 Example 2 Printing Fields in Opposite Order The following example is an awk script that can be executed by an awk -f examplescript style command. It prints the first two fields in opposite order: { print $2, $1 } Example 3 Printing Fields in Opposite Order with the Input Fields Separated The following example is an awk script that can be executed by an awk -f examplescript style command. It prints the first two input fields in opposite order, separated by a comma, blanks or tabs: BEGIN { FS = ",[ ]*|[ ]+" } { print $2, $1 } Example 4 Adding Up the First Column, Printing the Sum and Average The following example is an awk script that can be executed by an awk -f examplescript style command. It adds up the first column, and prints the sum and average: { s += $1 } END { print "sum is", s, " average is", s/NR } Example 5 Printing Fields in Reverse Order The following example is an awk script that can be executed by an awk -f examplescript style command. It prints fields in reverse order: { for (i = NF; i > 0; --i) print $i } Example 6 Printing All lines Between start/stop Pairs The following example is an awk script that can be executed by an awk -f examplescript style command. It prints all lines between start/stop pairs. /start/, /stop/ Example 7 Printing All Lines Whose First Field is Different from the Previous One The following example is an awk script that can be executed by an awk -f examplescript style command. It prints all lines whose first field is different from the previous one. $1 != prev { print; prev = $1 } Example 8 Printing a File and Filling in Page numbers The following example is an awk script that can be executed by an awk -f examplescript style command. It prints a file and fills in page numbers starting at 5: /Page/ { $2 = n++; } { print } Example 9 Printing a File and Numbering Its Pages Assuming this program is in a file named prog, the following example prints the file input numbering its pages starting at 5: example% awk -f prog n=5 input ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of awk: LANG, LC_ALL, LC_COLLATE, LC_CTYPE, LC_MESSAGES, NLSPATH, and PATH. LC_NUMERIC Determine the radix character used when interpreting numeric input, performing conversions between numeric and string values and formatting numeric output. Regardless of locale, the period character (the decimal-point character of the POSIX locale) is the decimal-point character recognized in processing awk programs (including assignments in command-line arguments). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: /usr/bin/awk +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWesu | +-----------------------------+-----------------------------+ |CSI |Not Enabled | +-----------------------------+-----------------------------+ /usr/xpg4/bin/awk +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxcu4 | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
egrep(1), grep(1), nawk(1), sed(1), printf(3C), attributes(5), environ(5), largefile(5), standards(5) NOTES
Input white space is not preserved on output if fields are involved. There are no explicit conversions between numbers and strings. To force an expression to be treated as a number, add 0 to it. To force an expression to be treated as a string, concatenate the null string ("") to it. SunOS 5.11 22 Jun 2005 awk(1)
All times are GMT -4. The time now is 03:30 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy