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Renaming a file name using awk

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# 1  
Old 04-23-2010
Renaming a file name using awk
I keep on getting different file names onto local directory, which I want to add a date field to it and rename like below. Incoming file names are encrypted (some pgp and some in asc), so when I use the script to decrypt it, I can use the renamed names for decryption.


incoming file names
Code:
test1.txt.pgp
test2.csv.pgp
test3.txt.asc
test4.dat.out.asc


renamed files as
Code:
test1-YYYYMMDD.txt
test2-YYYYMMDD.csv
test3-YYYYMMDD.txt
test4-YYYYMMDD.dat.out

can this be done with a single command in the script ( awk, sed.....etc...)

Thanks
Last edited by Franklin52; 04-23-2010 at 10:48 AM.. Reason: Correcting code tags
# 2  
Old 04-23-2010
Code:
#!/bin/ksh or bash or
d=$(date '+%Y%m%d')
for  line in *.pgp *.asc
do
        full=${line%.*}
        first=${full%%.*}
        end=${full#*.}
        echo "$first-$d.$end"
done

# 3  
Old 04-23-2010
Try this, check the output first without the coloured part:
Code:
ls | awk -F\. -v d=$(date +"%Y%m%d") '
{f=$0;$1=$1 "-" d;$NF=""}{print "mv " f " " $0}
' OFS="." | sh

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