if-shell always get false result?

[wyntau]

Because tmux 2.2 had removed some options only available before 2.2, but my server's tmux is old. So I want to have version detect in my tmux.conf to set some options only on old version.

But I found if-shell will always get false result?

my screenshot

my tmux version is 2.2, and I use zsh as my default shell.

could anyone help me correctly detect tmux version in tmux.conf?

[wyntau]

I get the anwser.

1. -lt -le -gt -ge are only used for integer
2. string compare more than or equal, I have to use [[ $a == 'string' ]] || [[ $a > 'string' ]]

So this issue closed.

[douglasdd]

Also NOTE: only POSIX shell syntax is officially supported for if-shell, so bash/zsh extensions (like [[) might work (or might not) -- depending on whether your /bin/sh is a symlink to /bin/bash (will work), or a symlink to /bin/dash (won't work), or something else entirely.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.