CODEWITHSUNDEEP
unixubuntuzsh
Yana Agun Siswanto
Yana Agun Siswanto

Reputation: 2032

What does it mean !{0}, !{1}, !{2} ... on zsh in Ubuntu?

Recently, I accidentally typed !{0}. I think it is some kind of special zsh function because it showed one of my previous commands while I execute it.

What does it mean on zsh?

$ !{0}

Note: I'm using zsh on Ubuntu.

Upvotes: 0

Views: 330

Answers (1)

rici
rici

Reputation: 241731

If you're "using zsh on ubuntu" then you are not using bash. bash and zsh are two different shells, which have slightly different behaviours.

In both shells, ! introduces a history expansion, which replaces the ! and following word with something taken from the command history.

In zsh, !{0} will be replaced with the previous command you typed which started with 0; the same as !0. In bash, the braces are treated literally, so !{0} will be replaced with the previous command which started with {0}. In both shells, !1 will be replaced with the first command in the history (if it is still remembered); in zsh, !{1} will also be replaced with the first command in the history, while in bash it will be replaced by a command starting with {1}

Upvotes: 3

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