iTerm2 and tmux: open new tab in working directory of current tab - macos

Question

When I open a new tab (via ⌘T) on a remote shell using iTerm2 and tmux, I almost always want the new tab to have the same working directory as the current tab. The best I can do is make iTerm2 open up the new tab in the same directory in which I ran tmux -CC or tmux -CC attach. (This behavior can be configured by navigating to Preferences → Profiles → General → Working Directory.)
This directory will not necessarily be the working directory of the current tab. Is there any way to get the behavior I'm looking for? I searched online for a while but could not find any helpful information.

Answer 1

When using Iterm2, if you want a new tab to open in the same directory as the current tab via ⌘T, there is an option available in your profile under preferences.
From the iTerm2 main menu:
Iterm2 -> Preferences -> Profiles -> General -> Working Directory -> Reuse previous session's directory

Answer 2

If you're using ZSH you could try something like this;
function tab() {
local command="cd \\\"$PWD\\\"; clear; "
(( $# > 0 )) && command="${command}; $*"
}
If you're using bash I'm not sure what the equivalent would be. Also if you're using prezto or Oh-My-ZSH the tab function is already built in.
UPDATE
Having had a look at how prezto does it, this should be the full solution
local command="cd \\\"$PWD\\\""
(( $# > 0 )) && command="${command}; $*"
the_app=$(
osascript 2>/dev/null <<EOF
tell application "System Events"
name of first item of (every process whose frontmost is true)
end tell
EOF
)
[[ "$the_app" == 'iTerm' ]] && {
osascript 2>/dev/null <<EOF
tell application "iTerm"
set current_terminal to current terminal
tell current_terminal
launch session "Default Session"
set current_session to current session
tell current_session
write text "${command}"
end tell
end tell
end tell
EOF
}
It uses the CLI for AppleScript and seems to work fine for me.

Answer 3

With tmux, one solution is to set alias itab='open . -a iterm' in your .bash_alias.