tail is one of the best tool to view log files in a real time (tail -f /path/to/log.file). The program MultiTail lets you view one or multiple files like the original tail program. The difference is that it creates multiple windows on your console (with ncurses). This is one of those dream come true program for UNIX sys admin job. You can browse through several log files at once and do various operations like search for errors and much more.
If you would like to copy a set of files for all existing users, use the following scripting trick. It will save lots of manual work.
First you need to grab all user names from /etc/passwd file using cut comand:
cut -d: -f1 /etc/passwd
Next use shell for loop command to apply copy and set the correct permissions [...]
Shred utility overwrites a file to hide its contents, and optionally delete it if needed. The idea is pretty simple as it overwrites the specified FILE(s) repeatedly, in order to make it harder for even very expensive hardware probing to recover the data. By default file is overwritten 25 times. I’ve seen cases where law [...]
