Linux to define Custom Shell Command?

问题:

I want to simply define a custom shell command, for example:
I type abc and it will output some text.

Like:

$ abc
The quick brown fox jumps over the lazy dog.

• How to make it simply in Linux?

回答1:

Try alias

alias abc="echo The quick brown fox jumps over the lazy dog."

you can add it into your ~/.bash_profile to make it valid for all sessions.

回答2:

You also should consider learning about bash functions so you would have

 function abc () {
   echo The quick brown fox jumps over the lazy dog.
 }

and as others told you, you could also use bash alias builtin.

^{You may want to remove the bash-specific function keyword to be portable to other Posix shells.}

The main advantage of functions in bash is that they can take some arguments and be more complex than what alias give you.

回答3:

If i have understood your requirement correctly ,you can use alias command for this

alias abc='echo "testing"'

回答4:

alias abc='echo The quick brown fox jumps over the lazy dog.'