How to pass quoted args to GNU Parallel
zsh-4.3.12[sysadmin]% print -l {1..3} | parallel -q echo "Quoted ' (text)"Quoted ' (text) 1Quoted ' (text) 2Quoted ' (text) 3As described by @mortehu:
Arguments passed to commands through parallel are expanded by the shell twice: once in the invocation of parallel, and once when parallel runs your command.
-qprevents the second shell expansion.
There is a whole section in the man page dedicated to quoting:
http://www.gnu.org/s/parallel/man.html#QUOTING
It even mentions the very error messages you write in your question.
If you can write it better please email your version to: parallel@gnu.org.