Use of --parents flag in mkdir and cp

Occasionally, you want to create a directory structure several levels deep. For example, /home/peter/status/2007/november. Your first attemp...Read more »

sudo hacks: making cd and redirection work

Suppose you want to run a command that requires root privileges. Conventional wisdom says don't login as root. Instead, login as a non...Read more »

How to Look Up a Process

You can look up a process in many ways. Often, you have the name of a daemon, command, or a program, and you want to know its process ID. ...Read more »

apt-get: dynamic MMAP out of room

Recently after upgrading wine and a few other packages, apt-get threw errors like these: Reading package lists... Error! E: Dynamic MMap ran...Read more »

How to Scroll the Command Window

How many times have you been annoyed by the command output spanning over the length of the window? If the window is in the X-Window environ...Read more »