Intro

Queue is a simple command that allows you to defer executing a command in one session until a specified command in another session completes.

For example, you may want to run a make command in one session and then have two other sessions run commands when make is complete.

In this example the run_rests.sh and show_logs.sh in panes 2 & 3 will run after the make command completes in pane 1 (at which point the q -t command will run -- the -t command sends the 'trigger'):

.-----------------------------------.-----------------------------------.
| $ make; q -t                  (1) | $ q; ./run_tests.sh           (2) |
|                                   |                                   |
|                                   |                                   |
|                                   |                                   |
|                                   |                                   |
|                                   |                                   |
|                                   |-----------------------------------|
|                                   | $ q; ./show_logs.sh           (3) |
|                                   |                                   |
|                                   |                                   |
|                                   |                                   |
|                                   |                                   |
|                                   |                                   |
'-----------------------------------'-----------------------------------'

Named Queues

You may also give queues a name, if you want to have more than one queue active at a time:

$ make; q -t foo

Elsewhere:

$ q foo; echo "Finished!"

Install

You can install this on OS X via brew:

brew install TomAnthony/brews/queue

On Linux you can just copy the q file into your PATH.

I may get round to better installation on other systems at somepoint. Feel free to submit a pull request! :)

Motivation

I wrote this to work with iTermocil and teamocil, where you may want some commands to wait for others as your session is configured.

FAQ

Q) What about the wait command?

A) I'm aware of wait but it requires the PID of the command you want to wait for and so didn't fit my use case (above). It was also more fiddly to use anyway.

To do

• Perhaps add an option that a single q -t can trigger multiple queues