CODEWITHSUNDEEP
zsh
Owen
Owen

Reputation: 39366

Is there a way to suppress interactive mode in zsh?

In zsh, is there a way to turn off interactive mode (specifically aliases) within a script that has been sourced interactively?

For example, if I define in foo.zsh:

#!/bin/zsh

a ha

and then do

alias a=echo
./foo.zsh

I get an error, because the alias is not applied; but if I do

. ./foo.zsh

I get ha.

Is there a way, within foo.zsh, to disable the alias a, even if it has been sourced with . ?

Upvotes: 4

Views: 1347

Answers (1)

Adam Spiers
Adam Spiers

Reputation: 17916

This is documented pretty clearly in the manual:

INTERACTIVE (-i, ksh: -i)
     This is an interactive shell.  This option is set upon
     initialisation if the standard input is a tty and commands are
     being read from standard input.  (See the discussion of
     SHIN_STDIN.)  This heuristic may be overridden by specifying a
     state for this option on the command line.  The value of this
     option can only be changed via flags supplied at invocation of the
     shell.  It cannot be changed once zsh is running.

but you don't need to turn off interactive mode just to prevent alias expansion:

$ setopt no_aliases
$ . ./foo.zsh
./foo.zsh:3: command not found: a
$ setopt aliases   
$ . ./foo.zsh   
ha

Upvotes: 1

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