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Full Discussion: Abbreviated aliasing would be a great feature to bring to shells
Top Forums Shell Programming and Scripting Abbreviated aliasing would be a great feature to bring to shells Post 303038296 by Chubler_XL on Thursday 29th of August 2019 07:04:51 PM
Old 08-29-2019
Quote:
Originally Posted by apmcd47
It would probably be possible to add the asterisk marker into the code to split the alias into minimal abbreviation + rest of alias, then add the latter to the former one letter at a time in a similar manner to the above.
Think this should do what you describe:

Code:
nalias() {
   local fulline="$*"
   local xalias=${fulline#*=}
   local name=${fulline%%=*}
   local pre=${name%%\**}
   local i

   [ "$pre" == "$name" ] && name=""
   name=${name#${pre}\*}

   for((i=0; i <= ${#name}; i++))
   do
      alias $pre${name:0:$i}=$xalias
   done
}

Of course for i in $(seq 0 ${#name}) can be used in place of the above for(( code for more compatibility with older shells, at the cost of some speed.
This User Gave Thanks to Chubler_XL For This Post:
apmcd47
 

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LEARN ABOUT PLAN9

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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