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DavidC Does parallel exit before its child processes are done?

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Revised by David Cuddihy 97d8bfb
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/tmp$ ls -lastr --time-style=full-iso
total 20
4 drwxr-xr-x 23 root     root        4096 2015-11-09 16:31:25.131100000 -0500 ..
4 drwxrwxrwt  2 root     root        4096 2015-11-18 10:39:01.033439000 -0500 .X11-unix
4 drwxrwxrwt  2 root     root        4096 2015-11-18 10:39:01.037439000 -0500 .ICE-unix
4 -rwxr-xr-x  1 dcuddihy domainusers   75 2015-11-18 13:29:18.189439000 -0500 test.sh
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:28.157439000 -0500 1
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:33.653439000 -0500 2
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:38.729439000 -0500 3
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:44.025439000 -0500 4
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:49.281439000 -0500 5
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:54.917439000 -0500 6
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:29:59.929439000 -0500 7
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:30:05.821439000 -0500 8
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:30:11.549439000 -0500 9
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:30:16.653439000 -0500 10
0 -rw-r--r--  1 dcuddihy domainusers    0 2015-11-18 13:30:22.649439000 -0500 done
4 drwxrwxrwt  4 root     root        4096 2015-11-18 13:31:12.697439000 -0500 .
test.sh
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#!/usr/bin/env bash
seq 1 10 | parallel "touch {};sleep 5"
touch /tmp/done
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