How to send output to next input line?

Question

This my snippet alias hst="history 1 -1 | cut -c 8- | uniq | fzf ". when I run hst The output is

$ ~ hst (the output from hst) $

This is what I want

$ ~ hst $ (the output from hst)

Example

$ ~ hst vi .zshrc $

should be

$ ~ hst $ vi .zshrc

How to fix this? (or enhance the script)

$(hst) or eval $(hst) would just directly execute whatever hst outputs; would skip a step. — frabjous
– frabjous, Commented Jun 20, 2022 at 16:21
@frabjous You'd need eval "$(hst)" in general. And you wouldn't get the opportunity to edit. — Gilles 'SO- stop being evil'
– Gilles 'SO- stop being evil', Commented Jun 20, 2022 at 19:06
There are several integrations of fzf with zsh that may be more convenient that your home-grown one. I don't cite any specific one because I'm not familiar with any of them. — Gilles 'SO- stop being evil'
– Gilles 'SO- stop being evil', Commented Jun 20, 2022 at 19:07

Stéphane Chazelas · Accepted Answer · 2022-06-20 16:44:33Z

To add something to the shell input stack as if it was input by the user, you'd use print -z:

hst() { local cmd cmd=$(print -rNC1 -- ${(u)history} | fzf --read0 "$@") && print -rz -- $cmd }

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