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How to deleted a string using tr- command

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# 1  
Old 06-30-2008
Question How to deleted a string using tr- command
I have a file like below

4 0 /work/ram/jagan/irt_XXrules.dat
4 0 /work/ram/jagan/irt_NNrules.dat
4 0 /work/ram/jagan/irt_MMrules.dat
4 0 /work/ram/jagan/irt_ZZrules.dat


My output should be

4 0 XXrules
4 0 NNrules
4 0 MMrules
4 0 ZZrules
# 2  
Old 06-30-2008
With sed:

Code:
sed 's/\(.* \).*_\(.*\)\..*/\1\2/' file

Regards
# 3  
Old 06-30-2008
bash
Code:
while read a b c
do
 c=${c##*_}
 c=${c%%.dat}
 echo $a $b $c
done < "file"

# 4  
Old 06-30-2008
awk -F"/" '{print $1 substr($NF,5,7)}' filename

Thanks
Penchal
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