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Need a help in shell script

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Top Forums Shell Programming and Scripting Need a help in shell script
# 1  
Old 09-30-2007
Need a help in shell script
Hi All

I am new to shell script .. can anyone help me on this


i have a file c1.txt

cool:niceone
revoke
similar
jeep
34343
34343


cool:notone
aefdfdd
sdsdsds
sdsdsds
sdsdsd
sdsds
sdsds


i have a parameter file b.txt
niceone

i need a shell which reads the parameter file and search the string in c1.txt once the string is found it should print those lines to an output file .

but a trick is here .. the string should print lines which start from "cool " and should print those lines but the script should stop before another cool is found
# 2  
Old 09-30-2007
Quote:
Originally Posted by raghav1982
the string should print lines which start from "cool " and should print those lines but the script should stop before another cool is found
I suggest a "while read" loop with a variable to say whether how many cools had been encounted.

I also assume that an awk script does not count as a shell script.
# 3  
Old 09-30-2007
can you give a sample code to work on this

Thanks a lot
# 4  
Old 09-30-2007
Code:
BETWEEN=false
while read N
do
     case "$N" in
     cool:* )
            if $BETWEEN
            then
                   BETWEEN=false
                   ;;
            else
                   BETWEEN=true
                   ;;
            fi
            ;;
      * )
            if $BETWEEN
            then
                   echo "$N"
            fi
            ;;
      esac
done <file1.txt

# 5  
Old 10-01-2007
Sorry for not being so clear in my information

The output which i need is to print all the lines

cool:niceone
revoke
similar
jeep
34343
34343


which should read the lines from the parameter lines and print it in an output file

Thanks .. awaiting for a reply for this one
# 6  
Old 10-01-2007
Try this (assume that there is an empty line between each 'cool:' section)
Code:
awk -v RS='' '
   NR==1 { string = "cool:" $1 }
   NR!=FNR && $1==string
' b.txt c1.txt

Jean-Pierre.
# 7  
Old 10-01-2007
With GNU awk:

Code:
awk '$0~"v"&&$0=RT$0{print;exit}' RS="cool:" v="$(<b.txt)" c1.txt

Last edited by radoulov; 10-01-2007 at 10:42 AM.. Reason: correction
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