Thread: shell script basic question

  1. #1
    Registered User
    Join Date
    Feb 2004

    shell script basic question

    i am usaing a cronjob to run a database backup script.

    i added the line
    cd /path/to/
    to the beggining of the script so the output .sql file stays in the corrent directory.

    this works but is not practical... i would like to have a script that whatever i put it would send the output to the current path...

    so basicaly i need to know.

    how do i get the current path? should be some environment varible right?

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    All sorts of ways

    Gets the current directory

    here=`dirname $0`
    Gets the relative path from here to the program being executed

    Then there's $HOME, but that might depend on who the effective user is.

    You could try creating a cron job which just contains
    to dump out the entire environment which your cron job sees.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

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