Visit Our UNIX and Linux User Community

Top Forums Shell Programming and Scripting Looking for command(s)/ script to find a text string within a file Post 302097265 by matrixmadhan on Wednesday 22nd of November 2006 11:53:08 PM
Old 11-23-2006
devr> | xargs grep -il 'maxcomb' {} \;
xargs and {}
why is that ?

find with xargs grep that would do..

If you dont want to display the output - that files cant be opened
then use 2>/dev/null with find
Test Your Knowledge in Computers #88
Difficulty: Easy
PowerShell makes use of pipes.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

find a string in a file and add some text after that file

Hi Could you please help me out by solving teh below problem ? I have a file with as below source1|target1|yes source2|target2|no source1 is file in which i have to place some code under the <head> tag in it. What code i have to place in source1 is something like this "abcd.....<target1>... (5 Replies)
Discussion started by: Tasha_T
5 Replies

2. Shell Programming and Scripting

How to redirect a input of find command into a text file

Hello friends, I want a command to print the reult files from find command into a text file.:) Iam looking from forum memebers. PLZ help me.ASAP Thanks in Advance, Siva Ranganath CH (5 Replies)
Discussion started by: sivaranga001
5 Replies

3. Shell Programming and Scripting

Find string in text file

Hello! Please, help me to write such script. I have some text file with name filename.txt I must check if this file contains string "test-string-first", I must cut from this file string which follows string "keyword-string:" and till first white-space and save it to some variable. For... (3 Replies)
Discussion started by: optik77
3 Replies

4. Shell Programming and Scripting

find string(s) in text file and nearby data, export to list help

Hi, So I'm kinda new to shell scripts and the like. I've picked up quite a bit of use from browsing the forums here but ran into a new one that I can't seem to find an answer for. I'm looking to parse/find a string AND the next 15 or so charachters that follow the string within a text file... (1 Reply)
Discussion started by: kar23me
1 Replies

5. Shell Programming and Scripting

Find multiple string in one file using find command

Hi, I want find multiple string in one file using find coomand. And keeping it in one variable.grep is not working. (5 Replies)
Discussion started by: vivek1489
5 Replies

6. Shell Programming and Scripting

How to find repeated string in a text file

I have a text file where I need to find the string = ST*850* This string is repetaed several times in the file, so I need to know how many times it appears in the file, this is the text files: ISA*00* *00* *08*925485USNR *ZZ*IMSALADDERSP... (13 Replies)
Discussion started by: cucosss
13 Replies

7. UNIX for Dummies Questions & Answers

How to pass file text into find command

Hi all, I have a large text file and also a smaller list of program names. I want to find out how many of those programs exist in the large text file. Can someone help me with the command/script please. The program list is along the lines of tranwe2 tranwe3 tranye5 etc so basically I... (5 Replies)
Discussion started by: Grueben
5 Replies

8. Shell Programming and Scripting

[Need help] perl script to find the occurance of string from a text file

I have two files 1. input.txt 2. keyword.txt input.txt has contents like .src_ref 0 "call.s" 24 first 0x000000 0x5a80 0x0060 BRA.l 0x60 .src_ref 0 "call.s" 30 first 0x000002 0x1bc5 RETI .src_ref 0 "call.s" 31 first 0x000003 0x6840 ... (2 Replies)
Discussion started by: acdc
2 Replies

9. UNIX for Beginners Questions & Answers

Find and replace a string in a text file

Dear all, I want to find all the "," in my text file and then replace the commas to a tab. I found a script online but I don't know how to modify the script for my case. Any one can help? Thank you. @echo off &setlocal set "search=%1" set "replace=%2" set "textfile=Input.txt" set... (2 Replies)
Discussion started by: forevertl
2 Replies

10. Shell Programming and Scripting

How can I use find command to search string/pattern in a file recursively?

Hi, How can I use find command to search string/pattern in a file recursively? What I tried: find . -type f -exec cat {} | grep "make" \; Output: grep: find: ;: No such file or directory missing argument to `-exec' And this: find . -type f -exec cat {} \; -exec grep "make" {} \;... (12 Replies)
Discussion started by: cola
12 Replies
XARGS(1)						    BSD General Commands Manual 						  XARGS(1)

xargs -- construct argument list(s) and execute utility SYNOPSIS
xargs [-0oprt] [-E eofstr] [-I replstr [-R replacements] [-S replsize]] [-J replstr] [-L number] [-n number [-x]] [-P maxprocs] [-s size] [utility [argument ...]] DESCRIPTION
The xargs utility reads space, tab, newline and end-of-file delimited strings from the standard input and executes utility with the strings as arguments. Any arguments specified on the command line are given to utility upon each invocation, followed by some number of the arguments read from the standard input of xargs. This is repeated until standard input is exhausted. Spaces, tabs and newlines may be embedded in arguments using single (`` ' '') or double (``"'') quotes or backslashes (``''). Single quotes escape all non-single quote characters, excluding newlines, up to the matching single quote. Double quotes escape all non-double quote char- acters, excluding newlines, up to the matching double quote. Any single character, including newlines, may be escaped by a backslash. The options are as follows: -0 Change xargs to expect NUL (``'') characters as separators, instead of spaces and newlines. This is expected to be used in concert with the -print0 function in find(1). -E eofstr Use eofstr as a logical EOF marker. -I replstr Execute utility for each input line, replacing one or more occurrences of replstr in up to replacements (or 5 if no -R flag is speci- fied) arguments to utility with the entire line of input. The resulting arguments, after replacement is done, will not be allowed to grow beyond replsize (or 255 if no -S flag is specified) bytes; this is implemented by concatenating as much of the argument contain- ing replstr as possible, to the constructed arguments to utility, up to replsize bytes. The size limit does not apply to arguments to utility which do not contain replstr, and furthermore, no replacement will be done on utility itself. Implies -x. -J replstr If this option is specified, xargs will use the data read from standard input to replace the first occurrence of replstr instead of appending that data after all other arguments. This option will not affect how many arguments will be read from input (-n), or the size of the command(s) xargs will generate (-s). The option just moves where those arguments will be placed in the command(s) that are executed. The replstr must show up as a distinct argument to xargs. It will not be recognized if, for instance, it is in the middle of a quoted string. Furthermore, only the first occurrence of the replstr will be replaced. For example, the following com- mand will copy the list of files and directories which start with an uppercase letter in the current directory to destdir: /bin/ls -1d [A-Z]* | xargs -J % cp -rp % destdir -L number Call utility for every number lines read. If EOF is reached and fewer lines have been read than number then utility will be called with the available lines. -n number Set the maximum number of arguments taken from standard input for each invocation of utility. An invocation of utility will use less than number standard input arguments if the number of bytes accumulated (see the -s option) exceeds the specified size or there are fewer than number arguments remaining for the last invocation of utility. The current default value for number is 5000. -o Reopen stdin as /dev/tty in the child process before executing the command. This is useful if you want xargs to run an interactive application. -P maxprocs Parallel mode: run at most maxprocs invocations of utility at once. -p Echo each command to be executed and ask the user whether it should be executed. An affirmative response, 'y' in the POSIX locale, causes the command to be executed, any other response causes it to be skipped. No commands are executed if the process is not attached to a terminal. -r Compatibility with GNU xargs. The GNU version of xargs runs the utility argument at least once, even if xargs input is empty, and it supports a -r option to inhibit this behavior. The NetBSD version of xargs does not run the utility argument on empty input, but it supports the -r option for command-line compatibility with GNU xargs; but the -r option does nothing in the NetBSD version of xargs. -R replacements Specify the maximum number of arguments that -I will do replacement in. If replacements is negative, the number of arguments in which to replace is unbounded. -S replsize Specify the amount of space (in bytes) that -I can use for replacements. The default for replsize is 255. -s size Set the maximum number of bytes for the command line length provided to utility. The sum of the length of the utility name, the arguments passed to utility (including NULL terminators) and the current environment will be less than or equal to this number. The current default value for size is ARG_MAX - 4096. -t Echo the command to be executed to standard error immediately before it is executed. -x Force xargs to terminate immediately if a command line containing number arguments will not fit in the specified (or default) command line length. If utility is omitted, echo(1) is used. Undefined behavior may occur if utility reads from the standard input. The xargs utility exits immediately (without processing any further input) if a command line cannot be assembled, utility cannot be invoked, an invocation of utility is terminated by a signal, or an invocation of utility exits with a value of 255. FILES
/dev/tty used to read responses in prompt mode EXIT STATUS
xargs exits with one of the following values: 0 All invocations of utility returned a zero exit status. 123 One or more invocations of utility returned a nonzero exit status. 124 The utility exited with a 255 exit status. 125 The utility was killed or stopped by a signal. 126 The utility was found but could not be invoked. 127 The utility could not be found. 1 Some other error occurred. SEE ALSO
echo(1), find(1), execvp(3) STANDARDS
The xargs utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compliant. The -J, -o, -P, -R, and -S options are non-standard FreeBSD extensions which may not be available on other operating systems. HISTORY
The xargs utility appeared in PWB UNIX 1.0. It made its first BSD appearance in the 4.3 Reno release. The meaning of 123, 124, and 125 exit values and the -0 option were taken from GNU xargs. BUGS
If utility attempts to invoke another command such that the number of arguments or the size of the environment is increased, it risks execvp(3) failing with E2BIG. The xargs utility does not take multibyte characters into account when performing string comparisons for the -I and -J options, which may lead to incorrect results in some locales. BSD
December 21, 2010 BSD

Featured Tech Videos

All times are GMT -4. The time now is 04:29 PM.
Unix & Linux Forums Content Copyright 1993-2021. All Rights Reserved.
Privacy Policy