topic Re: setting aliases in Operating System - HP-UX

setting aliases

Fred Ruffet — Wed, 31 Mar 2004 04:07:48 GMT

Hi !

I need to set an alias for a command, but it is not exported even when using -x. Here is what I have :

#alias -x foo=yeah
#alias -x
autoload='typeset -fu'
command='command '
foo=yeah
functions='typeset -f'
history='fc -l'
integer='typeset -i'
local=typeset
nohup='nohup '
r='fc -e -'
stop='kill -STOP'
suspend='kill -STOP $$'
type='whence -v'
#sh
#alias
autoload='typeset -fu'
command='command '
functions='typeset -f'
history='fc -l'
integer='typeset -i'
local=typeset
nohup='nohup '
r='fc -e -'
stop='kill -STOP'
suspend='kill -STOP $$'
type='whence -v'

Isn't my alias supposed to exist in subshells ?
And where are other aliases set ? (can't find them in profile)

Re: setting aliases

Sanjay Kumar Suri — Wed, 31 Mar 2004 04:29:03 GMT

alias are set in .shrc or .kshrc. alias are availabe in subshells also.

sks

Re: setting aliases

Ralph Grothe — Wed, 31 Mar 2004 04:38:03 GMT

Maybe you still have to assign the environment variable ENV to the file where your alias definitions reside, and export it.

Re: setting aliases

Mark Grant — Wed, 31 Mar 2004 04:45:44 GMT

From the sh-posix man page

"Exported aliases remain in effect for subshells but must be reinitialized for separate invocations of the shell"

Re: setting aliases

Fred Ruffet — Wed, 31 Mar 2004 04:53:04 GMT

They don't seem to. I have aliases that are not set in .kshrc, .shrc, .profile, /etc/profile... and aliases do not appear in subshells (try to launch a new shell, and you'll see) even if I use "alias -x".

Re: setting aliases

Sanjay Kumar Suri — Wed, 31 Mar 2004 05:01:24 GMT

Very trivial but

Have you set the alias as below?

alias dir=ls

sks

Re: setting aliases

Fred Ruffet — Wed, 31 Mar 2004 05:08:15 GMT

Of course, I tried alias "dir"="ls". but when I launch sh, I don't see it anymore.

I'll try to use ENV variable to set up aliases for each new shell (even if I think alias -x should have worked :)

Re: setting aliases

Jean-Luc Oudart — Wed, 31 Mar 2004 05:32:58 GMT

Hi tried myself

alias -x jlo='pwd'
alias jlo2='ls -C1'
~~~~~~~~~~~~~~~~~~~~~~~~
alias in current shell => I have both in the list
~~~~~~~~~~~~~~~~~~~~~~~~
sh : create new shell => I have none of them
~~~~~~~~~~~~~~~~~~~~~~~~
create a script that list the aliases.
when I run the script , this is a new process
I have jlo but not jlo2

~~~~~~~~~~~~~~~~

So this is exported for a process but not for a new shell
For this you need to setup your ENV variable :
ENV If this parameter is set, parameter substitution is
performed on the value to generate the path name of the
script to be executed when the shell is invoked (see
the "Invocation" subsection). This file is typically
used for alias and function definitions.

Regards,
Jean-Luc

Re: setting aliases

Fred Ruffet — Wed, 31 Mar 2004 05:36:51 GMT

Do your script to list aliases include a #!/bin/sh line ?

Re: setting aliases

Sanjay Kumar Suri — Wed, 31 Mar 2004 06:51:31 GMT

I have following observation:

alias set in .shrc are availabe in child shell where alias set at $prompt are not.

sks

Re: setting aliases

MarkSyder — Wed, 31 Mar 2004 07:10:06 GMT

I have a file alias.ksh which contains my aliases. When I log in I run . alias.ksh.

The . before the command makes sure the aliases are available in the current shell.

Mark Syder (like the drink but spelt different)

Re: setting aliases

Chia-Wei — Thu, 01 Apr 2004 02:44:29 GMT

Let's say your aliases are stored in file .alias.ksh

You need to add this line to your .profile :
export ENV=.alias.ksh

With this it will work.