in reply to Re^4: perlbrew: moving to a new perl with all current modules
in thread perlbrew: moving to a new perl with all current modules

The xargs program shipped with my Debian GNU/Linux system knows about the command line length limitation, and automatically wraps too long command lines into muliple programs. You can see the length limits easily:

$ xargs --show-limits Your environment variables take up 2038 bytes POSIX upper limit on argument length (this system): 2093066 POSIX smallest allowable upper limit on argument length (all systems): + 4096 Maximum length of command we could actually use: 2091028 Size of command buffer we are actually using: 131072

And to show that it does not produce an error, I create a command line that's 20 times that limit:

$ yes | head -n 20910280 | xargs /bin/echo > /dev/null $