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Accepted
Mohammad AL-Rawabdeh
Asked: 2010-11-04 00:36:41 +0800 CST

Bash scripting: detect first day of month

  • 772

I wrote three bash files:

  1. incremental_backup
  2. full_backup
  3. execution

Now I want another bash script do the following :

if (date is the start of month 1/-/----)
then     
    invoke `full_back_up`
else
    invoke `incremental_backup`

How can I write this script?

linux bash command-line-interface date

2 Answers

  1. Best Answer

    Don't do this. Instead use two separate cron jobs to invoke your tasks.

    15 5 1 * * scripts/full_back_up
15 5 2-31 * * scripts/incremental_backup
    • 13

  2. Try

    if [ `date +%d` != "01" ] 
then
    incremental_backup
else
    full_backup
fi
    • 9