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Renaming a filename

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# 1  
Old 02-01-2013
Question Renaming a filename
Hi friends ,

i want to change the filename as below

Code:
 
filename=ABC_HYND_JDHD_20130125120345.txt

Code:
expected output : ABC_HYND_JDHD_20130125.txt


i have tried using awk but not able to procedd futher. i am trying to do the above in single commad.

Code:
 
echo "ABC_HYND_JDHD_20130125120345.txt" | awk -F"." '{ x=$1;y=$2}'


plz help
# 2  
Old 02-01-2013
Code:
 
$ echo $filename | nawk -v OFS=_ -F_ '$NF=substr($NF,1,8)".txt"'
ABC_HYND_JDHD_20130125.txt

This User Gave Thanks to itkamaraj For This Post:
i150371485
# 3  
Old 02-01-2013
Code:
echo "ABC_HYND_JDHD_20130125120345.txt" | sed 's/[0-9]\{6\}\.txt/.txt/'

or
Code:
echo ${filename/[0-9][0-9][0-9][0-9][0-9][0-9].txt/.txt}

This User Gave Thanks to balajesuri For This Post:
i150371485
# 4  
Old 02-05-2013
@itkamaraj , @ bala.. Thank you so much . It works as expected. Smilie
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