Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

How to use command parameters that have embedded quotes?

See original GitHub issue

For example:

command = '/usr/bin/xvfb-run -a -s "-screen 0 1600x1200x24" ...'
c.create_container(image=settings.MYIMAGE, stdin_open=True, tty=True, command=command)

The resulting command always strips out the double quotes, resulting in failures. I’ve tried everything I can think of to escape, but the result is always:

/usr/bin/xvfb-run -a -s -screen 0 1600x1200x24 ...

Which isn’t really what I need.

Issue Analytics

State:
Created 9 years ago
Comments:7 (1 by maintainers)

Top GitHub Comments

15reactions

mkoistinencommented, Oct 22, 2014

Haven’t tried. Sorry, I found a solution and ran with it.

3reactions

mpetazzonicommented, Dec 17, 2015

FWIW when you use a list for the command, you don’t need quotes at all. Each element of the list is exactly one command line argument, even if it contains spaces.

command = ['/usr/bin/xvfb-run', '-a', '-s', '-screen 0 1600x1200x24', '...']

HTH

Top Results From Across the Web

Embedding Double Quotes in the Command - ITPro Today

The command-line parser uses the double quote (") character as an argument delimiter; that is, an argument can contain spaces if it's enclosed...

Quotes, Escape Characters, Delimiters - Windows CMD - SS64

How-to: Escape Characters, Delimiters and Quotes at the Windows command line. Delimiters. Delimiters separate one parameter from the next - they split the ......

windows - Escape double quotes in parameter - Stack Overflow

A double-quoted group ignores spaces as value separators when passing parameters to programs: program one two "three and more" will pass three parameters...

Passing command line args with quotes - TechNet - Microsoft

Define your script parameters using a param block a the top of the script. Then you can use your parameters from the command...

Shell Command Line Quoting Mechanisms - Ian! D. Allen

Note that quotes and backslashes are themselves meta-characters to the shell, so if you want quotes and backslashes to appear in command line...