Re: shell equivalent to text 1 thru -9?
Re: shell equivalent to text 1 thru -9?
- Subject: Re: shell equivalent to text 1 thru -9?
- From: "Mark J. Reed" <email@hidden>
- Date: Mon, 18 Apr 2005 16:40:59 -0400
The shell can't easily do string extraction by position, but it can
certainly do it by matching and removing a known prefix or suffix.
That is, given
x="nameOfSomeApp_log.txt"
then
${x%_log.txt}
will be "nameOfSomeApp".
You could alsou se ${x%_*.txt} if you aren't sure what comes between
the _ and the .txt; if that matches more than one part of the filename
(because there are two _s), then it will cut off the shortest suffix it
can; use %% instead of % to cut off the longest.
If you want to chop off a prefix, you can replace the % with a #. ${x##*.} will return "txt".
If you really do want to do it by character position, it's doable, just ugly:
${x%${x#?????????}}
On 4/18/05, Jake Pietrykowski <email@hidden> wrote:
Hi,
This isn't a AS question, but rather I'm looking for an example of a shell
equivalent to the AS command text 1 thru -9?
set x to "nameOfSomeApp_log.txt"
set y to text 1 thru -9 of x
I want to return 'nameOfSomeApp'?
TIA,
Jake
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