invoke zsh, having it run a command, and then enter interactive mode instead of exiting
Not that I would advise doing this.
(sirius)~: zsh -c 'print hello; zsh -i'
hello
(sirius)~: echo $SHLVL
2
There are other tricks you can play with screen and using the $STY
variable.
If you want something run from zsh with individual screens, you can check the $STY variable within your .zshrc or .zlogin. It is in the format <PID>.<TTY>.<HOSTNAME>
.
if [[ -n $STY ]] then
if [[ -f ~/.zsh-$STY[(ws:.:)2] ]] then
. ~/.zsh-$STY[(ws:.:)2]
fi
fi
If in screen, and if ~/.zsh-<TTY>
(from the $STY variable) exists, source that, then continue on your merry way. You can also set an environment variable before calling the interactive shell.
> FOO=bar zsh -i
> env | grep FOO
FOO=bar
> RUNTHISCOMMAND=/path/to/script zsh -i
.zshrc:
if [[ -n $RUNTHISCOMMAND ]] then
$RUNTHISCOMMAND
fi
Add those checks into your .zshrc/.zlogin.
I found a solution that works without an extra shell here. Add:
if [[ $1 == eval ]]
then
"$@"
set --
fi
to .zshrc, then call zsh with
zsh -is eval 'your shell command here'
Really great for starting up lots of shells at once.
I have eval "$RUN"
at the end of my .zshrc
. I can now run commands without the extra shell, with:
RUN='my_prog opt1 opt2' zsh