Edit wp-includes/functions.php and add the following add_action(‘after_setup_theme’, ‘remove_admin_bar’); function remove_admin_bar() { if (!current_user_can(‘administrator’) && !is_admin()) { show_admin_bar(false); } } Now the top navbar will only showup for admin users.
find /path -type f -exec ls -s {} \; | sort -n | tail -1
ls -s | awk NR!=1 | sort -n | awk ‘{print $2}’ | xargs bzip2 -9v
netstat -ntulp displays everything that is listening tcp and udp and the ip that it is listening on
To view web traffic (for example) use tcpdump -s 0 -w – port 80 | tcpdump -r – -A
cat list-1 list-2 list-3 | sort | uniq > final.list
Debugg bash scripts by runing with option -x example bash -x scriptname.sh