sed , awk script for printing matched line before regular expression Post: 302900703

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk script to move a line after the matched pattern line

I have the following text format in a file which lists the question first and then 5 choices after that the explanantion and finally the answer. 1.The amount of time it takes for most of a worker’s occupational knowledge and skills to become obsolete has been declining because of the...

2. Shell Programming and Scripting

sed not printing lines before a regular expression.

Hey, I found a way to print the lines which is just before a regular expression, not including the expression. sed -n '/regexp/{n;p;}' myfile Now I'm looking for a way to print all lines, exept the regular expression and also the line before the same regular expression. Use code tags.

3. Shell Programming and Scripting

AWK script issue for the part regular expression

Hi I am having a file as shown below FILE 1 TXDD00, TXDD01, TXDD02, TXDD03, TXDD04, TXDD05, TXDD06, TXDD07, TXDD08, TXDD09, TXDD10, TXDD11, TXDD12, TXDD13, TXDD14, TXDD15, TXDD16, TXDD17, TXDD18, TXDD19, TXDDCLK, TXDJTAGAMPL0, TXDJTAGAMPL1,...

4. Shell Programming and Scripting

AWK Script Issue insert newline for a regular expression match

Hi , I am having an issue with the Awk script to insert newline for a regular expression match Having a file like this FILE1 #################### RXOER , RXERA , RXERC , RXERD .RXEA(RXBSN), RXERD , REXCD input RXEGT buffer RXETRY ####################### Want to match the RXE...

5. Shell Programming and Scripting

matched characters - regular expression

Hi, I read the book of <<unix shell programming>>. The regular expression ^$.$\1 matches the first character on the line and stores it in register 1. Then the expression matches whatever is stored in the register 1, as specified by the \1. The net effect of this regular expression is to match...

6. Shell Programming and Scripting

How can I get the matched text when using regular expression.

Hello: (exp) : match "exp",the matched text is stored in auto named arrays. How can I get the matched text ? What is the name of the auto named arrays on linux shell ?

7. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print...

8. UNIX for Advanced & Expert Users

sed: -e expression #1, char 0: no previous regular expression

Hello All, I'm trying to extract the lines between two consecutive elements of an array from a file. My array looks like: problem_arr=(PRS111 PRS213 PRS234) j=0 while } ] do k=`expr $j + 1` sed -n "/${problem_arr}/,/${problem_arr}/p" problemid.txt ---some operation goes...

9. UNIX for Advanced & Expert Users

Add a line after last matched expression

I thought this would be easy to Google, but I am having trouble getting a clean result that I can understand. I simply want to insert the the line: My Network 192.168.1.1 After the last line that begins with ACL localnet

10. Shell Programming and Scripting

Help with awk script (syntax error in regular expression)

I've found this script which seems very promising to solve my issue: To search and replace many different database passwords in many different (.php, .pl, .cgi, etc.) files across my filesystem. The passwords may or may not be contained within quotes, single quotes, etc. #!/bin/bash...

LEARN ABOUT DEBIAN

shtool-fixperm

SHTOOL-FIXPERM.TMP(1)					      GNU Portable Shell Tool					     SHTOOL-FIXPERM.TMP(1)

NAME

       shtool-fixperm - GNU shtool file permission fixing command

SYNOPSIS

       shtool fixperm [-v|--verbose] [-t|--trace] path [path ...]

DESCRIPTION

       shtool fixperm fixes file permissions inside a source tree under path by cleaning up the permission bits. It determines the cleaned up
       permission from the already set bits. It is intended to be run before a tarball is rolled (usually with shtool tarball) out of a source
       tree. The trick is that this is more convenient than having to set the permissions manually or by using a large file list.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

EXAMPLE

	#   Makefile.in
	dist:
	    shtool fixperm -v *
	    ...

HISTORY

       The GNU shtool fixperm command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1996 for OSSP eperl.  It was later
       taken over into GNU shtool.

SEE ALSO

       shtool(1), chmod(1).

18-Jul-2008							   shtool 2.0.8 					     SHTOOL-FIXPERM.TMP(1)