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Full Discussion: Alias not recognized within script
Top Forums Shell Programming and Scripting Alias not recognized within script Post 302593586 by ahamed101 on Friday 27th of January 2012 12:09:36 PM
Old 01-27-2012
Code:
root@bt> cat run
#!/bin/bash
shopt -s expand_aliases
alias a='echo hello world'
a

man aliases
Quote:
Aliases are not expanded when the shell is not interactive, unless the expand_aliases shell option is set using shopt (see the description of
shopt under SHELL BUILTIN COMMANDS below).
man shopt
Quote:
expand_aliases
If set, aliases are expanded as described above under ALIASES. This option is enabled by default for interactive shells.
Why it was working for the other account, may be expand_aliases was set in his profile or somewhere or may be some other reason. Just my guess!

--ahamed
Last edited by ahamed101; 01-27-2012 at 01:30 PM..
 

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LEARN ABOUT MINIX

chsh

CHSH(1)                                                            User Commands                                                           CHSH(1)

NAME

       chsh - change login shell

SYNOPSIS

       chsh [options] [LOGIN]

DESCRIPTION

       The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
       the login shell for her own account; the superuser may change the login shell for any account.

OPTIONS

       The options which apply to the chsh command are:

       -h, --help
           Display help message and exit.

       -R, --root CHROOT_DIR
           Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -s, --shell SHELL
           The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
       value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE

       The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
       and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
       in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
       back to its original value.

FILES

       /etc/passwd
           User account information.

       /etc/shells
           List of valid login shells.

       /etc/login.defs
           Shadow password suite configuration.

SEE ALSO

       chfn(1), login.defs(5), passwd(5).

shadow-utils 4.5                                                    01/25/2018                                                             CHSH(1)
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