Here's a workaround until Apple updates sudo, add the following to you /etc/sudoers file:

  Defaults timestamp_timeout=0

Is parallel buggy or is it just me? For example if i have a list of ip addresses:

  $ cat ips.txt | sort | uniq -c | sort -rn

   3 127.0.0.1
   2 192.168.1.1
   1 192.168.1.2 

Now i want to reformat the output of uniq -c, i want the count to the last column:

  $ cat ips.txt | sort | uniq -c | sort -rn | parallel --colsep ' ' echo {2} {1}

But gives empty output.. what gives? It only works if I double pipe it thru parallel like this:

  $ cat ips.txt | sort | uniq -c | sort -rn | \
      parallel --trim lr echo | parallel --colsep ' ' echo {2} {1}

  127.0.0.1 3
  192.168.1.1 2
  192.168.1.2 1

You have more than 1 space from uniq. 2 options:

  parallel --colsep ' +' echo {2} {3}

or:

  parallel --colsep ' ' echo {7} {8}

Thanks!, but how come the whitespace is not trimmed by --trim lr? The manpage says it trims whitespace left and right if --colsep is used.