echo '### --hostgroup force ncpu'
### --hostgroup force ncpu
  parallel --delay 0.1 --hgrp -S @g1/1/parallel@lo -S @g2/3/lo whoami\;sleep 0.2{} ::: {1..8} | sort
parallel
parallel
tange
tange
tange
tange
tange
tange
echo '### --hostgroup two group arg'
### --hostgroup two group arg
  parallel -k --sshdelay 0.1 --hgrp -S @g1/1/parallel@lo -S @g2/3/lo whoami\;sleep 0.3{} ::: {1..8}@g1+g2 | sort
parallel
parallel
tange
tange
tange
tange
tange
tange
echo '### --hostgroup one group arg'
### --hostgroup one group arg
  parallel --delay 0.1 --hgrp -S @g1/1/parallel@lo -S @g2/3/lo whoami\;sleep 0.2{} ::: {1..8}@g2
tange
tange
tange
tange
tange
tange
tange
tange
echo '### --hostgroup multiple group arg + unused group'
### --hostgroup multiple group arg + unused group
  parallel --delay 0.1 --hgrp -S @g1/1/parallel@lo -S @g1/3/lo -S @g3/100/tcsh@lo whoami\;sleep 0.2{} ::: {1..8}@g1+g2 | sort
parallel
parallel
tange
tange
tange
tange
tange
tange
echo '### --hostgroup two groups @'
### --hostgroup two groups @
  parallel -k --hgrp -S @g1/parallel@lo -S @g2/lo --tag whoami\;echo ::: parallel@g1 tange@g2
parallel	parallel
parallel	parallel
tange	tange
tange	tange
echo '### --hostgroup'
### --hostgroup
  parallel -k --hostgroup -S @grp1/lo echo ::: no_group explicit_group@grp1 implicit_group@lo
no_group
explicit_group
implicit_group
echo '### --hostgroup --sshlogin with @'
### --hostgroup --sshlogin with @
  parallel -k --hostgroups -S parallel@lo echo ::: no_group implicit_group@parallel@lo
no_group
implicit_group
echo '### --hostgroup -S @group'
### --hostgroup -S @group
  parallel -S @g1/ -S @g1/1/tcsh@lo -S @g1/1/localhost -S @g2/1/parallel@lo whoami\;true ::: {1..6} | sort
tange
tange
tange
tcsh
tcsh
tcsh
echo '### --hostgroup -S @group1 -Sgrp2'
### --hostgroup -S @group1 -Sgrp2
  parallel -S @g1/ -S @g2 -S @g1/1/tcsh@lo -S @g1/1/localhost -S @g2/1/parallel@lo whoami\;true ::: {1..6} | sort
parallel
parallel
tange
tange
tcsh
tcsh
echo '### --hostgroup -S @group1+grp2'
### --hostgroup -S @group1+grp2
  parallel -S @g1+g2 -S @g1/1/tcsh@lo -S @g1/1/localhost -S @g2/1/parallel@lo whoami\;true ::: {1..6} | sort
parallel
parallel
tange
tange
tcsh
tcsh
echo '### trailing space in sshlogin'
### trailing space in sshlogin
  echo 'sshlogin trailing space' | parallel  --sshlogin "ssh -l parallel localhost " echo
sshlogin trailing space