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Shell Programming and Scripting

remove anything after repeated string pattern found

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# 1  
Old 02-06-2012
remove anything after repeated string pattern found
HI,
Can anyone help me with a script.

i/p
Code:
calc 1 2 3 4 5 6 7 8
calc 4 5 6 calc 7 8 9

o/p
Code:
calc 1 2 3 4 5 6 7 8
calc 4 5 6

i.e remove anything after where two times the string calc is found.

thanks
Last edited by Franklin52; 02-06-2012 at 06:45 AM.. Reason: Please use code tags for data and code samples, thank you
# 2  
Old 02-06-2012
Code:
perl -pe 's/(calc.*?)calc.*/$1/g' inputfile

# 3  
Old 02-06-2012
Code:
$ sed 's/\(calc.*\) calc.*/\1/' input.txt
calc 1 2 3 4 5 6 7 8
calc 4 5 6

# 4  
Old 02-06-2012
Code:
$ sed 's/ c.*//' input.txt
calc 1 2 3 4 5 6 7 8
calc 4 5 6

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