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#1
September 15th, 2004, 01:42 AM
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how to grep date format ddmmyyyy
can anyone help me in this:
I had to select file names in ddmmyyyy format from a list & have to make sure that selected file name should all the limitations of date,month & year such as date cannot exceed 31,30 or 28 depending upon the month.
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#2
September 15th, 2004, 01:19 PM
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try:
Code:
while read filename
do
# validate date/time a parameter entered
MMDD=$(expr substr $filename 5 4)
YYYY=$(expr substr $filename 1 4)
hh="01"
mm="01"
ss="01"
if touch -c -t $YYYY$MMDD$hh$mm.$ss dummyfile
then
echo "$filename is valid"
else
echo "$filename is invalid"
fi
done < listfile
where listfile is a list of filenames
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