I need to create a shell script that appends a timestamp to existing file. I mainly use Mac OS X for development. Wanted to create the same on Mac Terminal.
Here are some basics on date command.
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NAME date -- display or set date and time SYNOPSIS date [-ju] [-r seconds] [-v [+|-]val[ymwdHMS]] ... [+output_fmt] date [-jnu] [[[mm]dd]HH]MM[[cc]yy][.ss] date [-jnu] -f input_fmt new_date [+output_fmt] date [-d dst] [-t minutes_west] |
Samples:
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bash-3.2$ date Wed Sep 26 19:29:10 PDT 2012 bash-3.2$ date +"%Y/%m/%d" 2012/09/26 |
Script to append date stamp to file:
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#!/bin/sh file_name=test_files.txt current_time=$(date "+%Y.%m.%d-%H.%M.%S") echo "Current Time : $current_time" new_fileName=$file_name.$current_time echo "New FileName: " "$new_fileName" cp $file_name $new_fileName echo "You should see new file generated with timestamp on it.." |