Re: basic bash help
- From: "Radoulov, Dimitre" <cichomitiko@xxxxxxxxx>
- To: Chris.Stephens@xxxxxxx
- Date: Fri, 27 May 2011 21:26:54 +0200
On 27/05/2011 20:42, Stephens, Chris wrote:
I'm writing a script to allow the sysadmin's to kill any active
sessions for a particular database user.
If the script is called as root, I re-invoke it as oracle. However,
'dirname' doesn't seem to be working as expect and I have no idea why
or how to get around it. A little bit of googl'ing didn't help either
so I turn to old faithful. J
[...]
You could use something like this (assuming a *POSIX* shell):
SCRIPT_DIR=$(
cd -P -- "$(dirname -- "$0")" && pwd -P
)
It won't work if you invoke the script as:
sh script_name
and the script is not in the current directory.
In that case you could use something like this:
SCRIPT_DIR=$(
_script=$0
case $_script in
( */* ) ;;
( * ) [ -e "$_script" ] || _script=$(command -v -- "$0")
esac
cd -P -- "$(dirname -- "$_script")" && pwd -P
)
It won't work in all situations, but it may be sufficient :)
Regards
Dimitre
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