Category: bookmarks

Useful UNIX Shell Commands

Set operations in Unix Shell: http://www.catonmat.net/blog/set-operations-in-unix-shell-simplified/ SSH into set of hosts and, if host is alive, execute background job: for h in host1 host2 host3; do ssh $h echo 1 > /dev/null 2>&1; if [ $? != 0 ]; then continue; fi; # proceed if host alive ssh -f $h ‘sh -c “nohup /path/to/script.sh arg1 […]