sed , awk script for printing matched line before regular expression Post: 302900503

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

scitools

SCITOOLS(1)						      General Commands Manual						       SCITOOLS(1)

NAME

       scitools - run a SciTools command

SYNOPSIS

       scitools command [OPTIONS]

DESCRIPTION

       The scitools script takes a command and runs a corresponding utility. The available commands are listed below.

       file2interactive
	      Utility for taking a set of Python statements in a file and creating the corresponding interactive Python shell session.

       floatdiff
	      Script for examining differences in regression tests involving floating-point numbers. Used in [1].

       regression
	      Simple front-end script to SciTools' Regression module. Used in [1].

       ps2mpeg
	      Utility for turning a set of PostScript files into an MPEG movie, using mpeg_encode or ppmtompeg.

       profiler
	      Script for simplifying the execution of Python's profiling tools. Used in [1].

       rename Script for renaming a set of files by substituting one string or regular expression with another.

       subst  Script for subsituting a phrase by another in a set of files. Accepts regular expressions. Treated in [1].

       replace
	      Script  for  subsituting	a  phrase by another in a set of files. Does not use regular expressions, just plain text (well suited for
	      substituting text with much use of backslashes, curly braces, and other special  characters  in  regular	expressions  (e.g.,  LaTeX
	      text).

       movie  Script  for  creating  a	movie file from a sequence of image files (frames). By default an HTML file for displaying the image (PNG)
	      files are made.

       pyreport
	      Processes a Python script and pretty prints the results using LateX. If the script uses show() commands (from scitools.easyviz) they
	      are caught by pyreport and the resulting graphs are inserted in the output pdf. Comments lines starting with "#!" are interpreted as
	      rst lines and pretty printed accordingly in the pdf.

       [1] H. P. Langtangen: Python Scripting for Computational Science. Third
	      edition, second printing. Springer, 2009.

OPTIONS

       -h, --help
	      Show usage for all commands and exit.

BUGS

       Send comments, questions, bug reports etc. to scitools@googlegroups.com.

LICENSE

       SciTools is licensed under the new BSD license.

AUTHOR

       SciTools is written by Hans Petter Langtangen <hpl@simula.no>, Johannes Ring <johannr@simula.no>,  Ilmar  Wilbers  <ilmarw@simula.no>,  and
       Rolv E. Bredesen <rolv@simula.no>. This manual page is written by Johannes Ring <johannr@simula.no>.

																       SCITOOLS(1)