This trick can be useful in case we are the only user using the same machine. Being asked each time for a sudo password can be really grueling.

1. Open the sudoers file :

   sudo visudo

2. add this line :

   sc ALL=(ALL) NOPASSWD: ALL

   This will allow user "sc" to run all commands without a sud...

Suppose we are asked to install a Debian based flavor on an old laptop or PC but we are unsure about the type of disk that is used. One solution could be the use of a bootable live usb to check performance and gather system specifications prior to installation. This post will walk us through helpf...

7. Working with strings

7.1 Case insensitive matching

The i or I as a flag for the substitution command implies case-insensitive substitution. Here, the pattern is lowercase and the s command will substitute to upper case ignoring case.

sed  -n 's/victor hugo/VICTOR HUGO/pi' books.log

Th...

1. Stream Editor : sed

sed (Stream Editor) is a robust command-line tool utilized in Linux and Unix-like operating systems for the purpose of parsing and modifying text.

It operates as a non-interactive text editor, which indicates that it automatically processes text according to a predefined s...

People's Choice was an American funk band formed in 1971 in Philadelphia by Frank Brunson and David Thompson. While they had several vocalists, their biggest hits were instrumentals.