CODEWITHSUNDEEP
bashshellescapingcygwinquotes
Will Vousden
Will Vousden

Reputation: 33358

Bash quote problems

I'm trying to invoke a native Windows command from Cygwin using run, but as it happens, the command (which I'm taking from the registry) is already quoted and in several parts:

"C:\path\to\file.exe" -- "some argument"

If I use run "C:\path\to\file.exe" -- "some argument" from the terminal, it works fine, but as soon as I put it in a Bash script it tries to escape the double quotes and adds single quotes around the entire thing, which ruins it:

\"C:\path\to\file.exe\" -- \"some argument\"

If I put an echo in before trying to run the command, it displays the expected command, but the run command fails.

echo $command
run $command

I'm fairly new to bash scripting, so I expect I'm missing something fundamental :)

Update: I think I got confused about the single quotes.

Update: Here's the relevant part of the script:

command=`cat /proc/registry/hkey_classes_root/http/shell/open/command/@`
command=${command/"%1"/$target}
run $command

Here's what I've tried in response to SiegeX's suggestion:

command=`cat /proc/registry/hkey_classes_root/http/shell/open/command/@`
command=(${command/"%1"/$target})
run "${command[@]}"

I've also tried cmd /c as an alternative to run, with the same results (works from the terminal but not the script).

Upvotes: 1

Views: 1611

Answers (2)

Dennis Williamson
Dennis Williamson

Reputation: 360085

This works for me:

command=$(< /proc/registry/hkey_classes_root/http/shell/open/command/@)
command=${command//\"/}
command=$(cygpath "$command")
command=${command/\%1/$target}
eval run $command

Upvotes: 2

SiegeX
SiegeX

Reputation: 140327

Quote $command like this: run "$command"

If that doesn't work, try this:

#!/bin/bash

cmd=("C:\path\to\file.exe" "--" "some argument")
run "${cmd[@]}"

Upvotes: 0

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