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Re: Just created alias doesn't work in a string of commands
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From: |
Paul Jarc |
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Subject: |
Re: Just created alias doesn't work in a string of commands |
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Date: |
Thu, 08 Feb 2007 11:50:29 -0500 |
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User-agent: |
Gnus/5.110003 (No Gnus v0.3) Emacs/21.4 (gnu/linux) |
"Gurjeet Singh" <singh.gurjeet@gmail.com> wrote:
> 1$ cat setenv.sh
> #!/bin/sh
>
> alias llrt='ls -lrt'
...
> 5$ . ./setenv.sh && llrt && . ./unsetenv.sh
> sh: llrt: command not found
Aliases are expanded when a command is read, not when it is executed.
The entire && chain of commands forms a single compound command, which
is completely read before any of it is executed, so the alias is not
defined yet at the point when it would be expanded.
paul