Shell Programming and Scripting

Hi,

In my previous post I looked for timestamp to be added to the filename
https://www.unix.com/shell-programmin...sing-find.html
Now how do I select those files that do not have timestamp in the filenames.
I tried the following. My file has extension either *.out or *.bad.

Code:

echo "abcdef.test.1234.20130722133919.out" | grep -v '[0-9]\{14\}\.[out|bad]'

Though it did give good results, the above code can be any 14 consecutive numbers. How does the grep/sed/awk knows the pattern as YYYYDDMMHHMISS.out or YYYYDDMMHHMISS.bad

The script should not pick the files that has timestamp in the filename.


Thanks for your help

With GNU/Linux utilities:

Code:

x='abcdef.test.1234.20130722133919.out'
echo $x | cut -d. -f4 | sed 's/\(.\{8\}\)\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1 \2:\3:\4/' | xargs -I{} date -d {} 1&>/dev/null
if [ $? -ne 0 ]
then
    echo "Bad date in file"
    exit 1
fi

I encountered the following error
date: illegal option -- d
Usage: date [-u] [+Field Descriptors]

I have the following version of unix (ksh)
AIX <hostname> 1 6 00F736154C00

Try this regular expression in grep. Be warned that this regex is better than the one in post #1, but not completely fool-proof. For e.g., it could still give a GO for 20130631 or 20130230 which are invalid dates.

Code:

201[0-9]\(0[1-9]\|1[0-2]\)\([0-2][1-9]\|3[01]\)\([01][0-9]\|2[0-3]\)[0-5][0-9][0-5][0-9]\.\(out\|bad\)