Re: [Linuxcommand-discuss] aliases in scripts

Of course all shells are different - else you wouldn't have so damn 
many! That said:

Directly executing a script opens a new shell and each command in that 
script is only within that shell. When the script exits, so does that 
seperate shell process.
    1. From the current shell, have an executable script "somescript". 
Type "somescript".
You can do this yourself and call the shell process you want it to run 
in, and pass default shell parameters.
    2. From the current shell, have an executable script "somescript". 
Type "bash somescript".
        You can also run your script with the 'x' option to test things 
out; "bash -x testscript" and watch the script execute!
 You can also execute a script within the context of the current shell, 
and have that script interact with the shell.
    3. From the current shell, have an executable script "somescript". 
Type "source testscript".

Also of interest:
If you read the BASH manpage, it indicates the --norc option (which is 
on by default if the shell is invoked as 'sh')  ~/.bashrc will not be 
read or executed.
You can also read about the option --noprofile. This would cause the 
shell not to read the /etc/profile, ~/.bash_profile, ~/.bash_login, or 
~/.profile.

Notice you don't see ~/.bashrc in the --noprofile option <is this a hint?>

Hope this gives you something to think about,

Norman.

William Shotts wrote:

>That is a really interesting question.  I have noticed on my RH box that
>scripts do inherit the aliases of the user.  I saw where this was
>controlled once, but I can't remember where.  I would perfer the
>behavior you describe since it would make the execution environment
>more predictable/secure.  Perhaps one of our more enlightened members will
>know the answer.
>
>|||||  William Shotts, Jr. (bshotts AT panix DOT com)
>|||||  Be a Linux Commander!  Follow me to http://linuxcommand.org
>
>On 6 Aug 2002, Mertens Bram wrote:
>
>  
>
>>Hi,
>>
>>I added some aliases to my ~/.bashrc file like
>>alias lh='ls -lh'
>>and restarted my konsole to activate the changes (which works fine) but
>>now I tried to call that alias from a script and I get:
>>/home/M8ram/bin/bu: lh: command not found
>>
>>Is this because shell scripts are executed in a non-interactive shell?
>>
>>Is it possible to use aliases in scripts? (Without defining them in the
>>script?
>>
>>I know I'm being really lazy! :)))
>>
>>Thanks
>>--
>>|          Mertens Bram "M8ram"  <bra...@li...>
>>|   Registered [Red Hat] Linux User # 249103 since Octobre 2000
>>| http://linux.be | http://www.redhat.com | http://counter.li.org
>> \____________________________
>>
>>
>>
>>
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