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  1. or download this
    $ xargs --show-limits
Your environment variables take up 2038 bytes
...
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
  2. or download this
    $ yes | head -n 20910280 | xargs /bin/echo > /dev/null
$