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Re: Bash substrings: wish for support for negative length (read till n f
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From: |
Jan Schampera |
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Subject: |
Re: Bash substrings: wish for support for negative length (read till n from end) |
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Date: |
Tue, 08 Jul 2008 06:31:44 +0200 |
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User-agent: |
IceDove 1.5.0.14eol (X11/20080509) |
Richard Neill wrote:
> $ echo ${stringZ:2: -1} #Wish: start at 2, read till
> ERROR #1 before the end. i.e.
> # cde
>
> $ echo ${stringZ: -3: -1} #Wish: start 3 back, read till
> ERROR #1 before the end. i.e.
Use (-1), i.e.
$ echo ${stringZ:2:(-1)}
See also
http://bash-hackers.org/wiki/doku.php/syntax/pe#substring_expansion (at
bottom of the section).
J.