Displaying /proc/PID/cmdline with space

On linux, the file /proc/PID/cmdline shows the command line for the process. If you check content of this file, you will see the command, but arguments are not seperated by space.

To display the command line with space, run

cat /proc/PID/cmdline | tr '\000' ' '

Or

cat /proc/PID/cmdline  | xargs -0 echo

Example

To display environ file, run

cat environ  | xargs -0 -L1  echo