how to add parameter to bash alias without space in between?

Question

We can do with ease:

myalias='command param1 param2'

then myalias param3 runs

command param1 param2 param3

I need an alias which will run the same, but without the last 'space':

command param1 param2param3

For example I have many servers in /24 subnet and need to run the same command using the ip. So I want alias like command param1 192.168.0. then just run myalias 103 and the command will be applied to 192.168.0.103.

I tried to add $1 at the end of the alias but no luck.

Sorry, aliases are fairly limited. As the Bash docs state: "For almost every purpose, aliases are superseded by shell functions." — PM 2Ring, Aug 06 '17 at 11:24
For anything even vaguely complicated, functions make much more sense. Aliases really are just aliases, i.e. renaming an existing command.. — Joe Healey, Aug 06 '17 at 11:31
Do you have a non dummy example you could post because I'm not sure what practical purpose passing 2 parameters without the space actually serves? — Joe Healey, Aug 06 '17 at 11:56
It is not duplicate, because as marked in @Warren Young answer on that question - "You don't have to do anything, actually" if you want just to pass a param. I needed to pass it in a quite special way. Nevertheless, one of those answers helped me. — Putnik, Aug 06 '17 at 17:02

score 14 · Answer 1 · answered Aug 06 '17 at 12:54

14

If you are happy to use a function, you can do something like:

command(){
"$1" "$2" "192.168.0.${3}"
}

If I test this with a dummy command:

mycommand(){
$1 "130.200.68.${2}"
}

$ mycommand ping 180

Would ping the server with the last section of the IP added.

answered Aug 06 '17 at 12:54

Joe Healey

674

Good idea! Would it there be a way to use also provide the autocompletion facility we get using alias? – MensSana Aug 13 '22 at 21:49

how to add parameter to bash alias without space in between?

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