Disk usage

yum --enablerepo=epel install ncdu

pydf instead of df

yum --enablerepo=epel install pydf

Parallel Shells

cat list_of_servers | xargs -P10 -I "HOST" -n1 sh -c 'ssh HOST uptime | sed -e "s/^/HOST: /"'

  • for i in

for server in $(cat list_of_servers); do ssh $server command argument; done

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