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Full Discussion: Assign Values to a Variable in While Loop and Update the File
Top Forums Shell Programming and Scripting Assign Values to a Variable in While Loop and Update the File Post 303017361 by Corona688 on Monday 14th of May 2018 04:22:00 PM
Old 05-14-2018
Quote:
Originally Posted by infernalhell
I need to use the same file and update the row in the file by assigning Completed in the 3rd column after i perform some functions
Files do not work that way. Even something like sed -i really just replaces or overwrites the entire file.

So I think my method should work:

Code:
cp inputfile inputfile.bak
while IFS="|" read -r SERIAL JOB STATUS
do
        if [ -z "$STATUS" ] 
        then
                do_something
                STATUS="somethingelse"
        fi
        printf "%s|%s|%s\n" "$SERIAL" "$JOB" "$STATUS"
done < inputfile > outputfile

mv outputfile inputfile

This User Gave Thanks to Corona688 For This Post:
infernalhell
 

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