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UNIX script: *.txt->*yymmddhhmm.txt

Comment:

Out of nowhere, I suddenly need to rename a file with the current date and time automatically appended e.g. the script should prompt you for a filename, you type an input filename such as “fred.txt,” the function of the program is to change "fred.txt" to "fred0210311600.txt" if executed at 16:00 on 31/10/02. Also, what would be a nice book, brief if possible, describing Unix scripting?

Name: jimbo
Date: November 5, 2002 at 03:22:22 Pacific

Reply:

#! /bin/ksh # change a file name to include current date # File should be in the current directory DATE=`date +%y%m%d%H%M` if [[ $# == 0 ]] ; then print "No file specified" exit 1 fi NAME=${1%.*} EXT=${1##*.} # Check if a file extension exists if [[ "$NAME" == "$EXT" ]] ; then mv $1 ${NAME}${DATE} else mv $1 ${NAME}${DATE}.$EXT fi -jim

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