It is #{}.
$ tmux setenv -g FOO 1
$ tmux if -F '#{FOO}' 'run "echo yes >/tmp/foo"' 'run "echo no >/tmp/foo"'
$ cat /tmp/foo
yes
$ tmux setenv -g FOO 0
$ tmux if -F '#{FOO}' 'run "echo yes >/tmp/foo"' 'run "echo no >/tmp/foo"'
$ cat /tmp/foo
no
$ tmux setenv -gu FOO
$ tmux if -F '#{FOO}' 'run "echo yes >/tmp/foo"' 'run "echo no >/tmp/foo"'
$ cat /tmp/foo
no
On Thu, Mar 22, 2018 at 01:45:42PM -0400, Helmut K. C. Tessarek wrote:
> Thanks for the reply.
>
> On 2018-03-22 13:37, Nicholas Marriott wrote:
> > Try if -F '#{TPCS}'
> >
> > Or maybe $TPCS I forget.
>
> I tried the following:
>
> bind C-b if -F '#{TPCS}' \ [next 2 lines as before]
>
> and
>
> bind C-b if -F '$TPCS' \ [next 2 lines as before]
>
> Unfortunately neither worked.
>
> Cheers,
> K. C.
>
> --
> regards Helmut K. C. Tessarek KeyID 0x172380A011EF4944
> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
>
> /*
> Thou shalt not follow the NULL pointer for chaos and madness
> await thee at its end.
> */
>
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