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Top Forums Shell Programming and Scripting Need to find a string, check the next line, and if it matches certain criteria, replace it with a s Post 302371879 by frans on Monday 16th of November 2009 01:24:31 PM
Old 11-16-2009
Here is it (not tested)

Quote:
Originally Posted by midniteslice
Thanks FRANS! This looks a lot simpler than I thought it would be. I'll try it out as soon as i get on my linux box.
I for the most part understand whats happening here. Could you explain the purpose of the ":0:5" in this line? I found what the curly brackets do, but as of yet, not the colons.
Code:
 if [ "${LINE:0:5}" = "data7" ]

it extracts 5 characters from position 0 (the first)
Quote:
The only problem i'm having is that it's deleting the line that contains "SystemDeclarationData". otherwise it's working great. can you tell me what i'm doing wrong?
The script is wrong i'll modify it to work properly.
In a couple of minutes, OK?Smilie
The script
Code:
#!/bin/bash
Input="test.fplan"
I=1
while read LINE
do    #~ find the string that starts with data7
    echo "$LINE"
    [ "${LINE:0:5}" =~ "SystemDeclarationData" ] || continue #~ continue if the condition is not satisfied
    read LINE
    if $(echo "$LINE" | grep -q prisoner)
    then    head -n$I $Input | tail -n1
        (( I ++ ))
    else echo "$LINE"
    fi
done < $Input > test_csv.csv


Last edited by frans; 11-16-2009 at 02:37 PM.. Reason: script provided
 

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ZILE(1) 							   User Commands							   ZILE(1)

NAME
Zile - Zile Is Lossy Emacs SYNOPSIS
zile [OPTION-OR-FILENAME]... DESCRIPTION
Zile is a lightweight Emacs clone that provides a subset of Emacs's functionality suitable for basic editing. Run Zile, the lightweight Emacs clone. Initialization options: --no-init-file, -q do not load ~/.zile --funcall, -f FUNC call Zile Lisp function FUNC with no arguments --load, -l FILE load Zile Lisp FILE using the load function --help display this help message and exit --version display version information and exit Action options: FILE visit FILE using find-file +LINE FILE visit FILE using find-file, then go to line LINE Exit status is 0 if OK, 1 if it cannot start up, for example because of an invalid command-line argument, and 2 if it crashes or runs out of memory. FILES
~/.zile -- user's Zile init file /usr/share/zile/dotzile-extra.el -- which contains some useful code for the init file. AUTHOR
Zile was written by Sandro Sigala, David A. Capello and Reuben Thomas. The Lisp interpreter is based on code by Scott Lawrence. REPORTING BUGS
Report bugs to bug-zile@gnu.org. COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. GNU Zile comes with ABSOLUTELY NO WARRANTY. You may redistribute copies of Zile under the terms of the GNU General Public License. For more information about these matters, see the file named COPYING. SEE ALSO
emacs(1) Zile 2.3.20 November 2010 ZILE(1)
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