I like zsh's autocorrect for commands. It has an annoying feature, however: sometimes I try to run a command, notice it doesn't exist, install it, then try to run it again, and zsh still wants to make the same correction. Zsh does this because keeps a hash of command paths, and it doesn't go beyond the hash when doing autocorrection. If I say n to the correction after installing the command, the command does run, but I have to say n again each time I want to run the command, or update the command hash in each running instance by calling the hash builtin.

I do want zsh to keep a hash of command paths, and I want to keep autocorrection (i.e. I type a command name and press Enter as usual, and zsh suggests a correction if the command does not exist). However, I want “the command does not exist” to mean that the command is not on $path at this point in time, not that the command is does not exist.

Steps to reproduce:

$ mkdir /tmp/test
$ cp /bin/true /tmp/test/wibble
$ PATH=/tmp/test:/bin zsh -f -o correct
darkstar% wobble
zsh: correct 'wobble' to 'wibble' [nyae]? a
darkstar% cp /tmp/test/{wibble,wobble}
darkstar% wobble
zsh: correct 'wobble' to 'wibble' [nyae]? n

Desired behavior: when wobble exists, don't prompt to correct it. How can I do this?

  • I don't experience this on my system. automatically detects wobble without action. zsh 5.4.1 on fedora 27. All my *hash* options are set to "off". – Patrick May 20 '18 at 6:54
  • @Patrick I have the default settings for all hash options, meaning that hash_list_all, hash_cmds and hash_dirs are on. – Gilles May 20 '18 at 10:55
  • @Gilles : I understand that it should work in your case, but just for the safe side: Do you see the same effect, if you are doing an explicit rehash before trying the autocompletion again? – user1934428 May 21 '18 at 6:28

As mentioned by @user1934428, you can recreate the hash table explicitly by running rehash. To avoid doing it manually put this in your zshrc:

zstyle ":completion:*:commands" rehash 1

You can find out more about zstyle from zshmodule man page, and the styles themselves are documented in zshcompsys.

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