The Geeky Linux :: Ubuntu/Linux blog :: Open source Tips and Tricks :: Linux Howtos and Tutorials

Running the bash script in debug mode help us understand what is going on in the script before getting the output. This also help us find why our program didn't run if there is any issue.

It is just like step by step processing of the bash program.

We can use the below command to run the bash script in debug mode in run time.

Sometimes we want to combine the lines in a file as single line. How to achieve this in linux using command line?

We can use the command 'paste' for this purpose.

From its man page,

paste - merge lines of files

Linux screen command is one of the most used command in my life. Not only it is very useful but also it is very versatile. Screen is mainly used to run another terminal inside our normal linux terminal.

For example, you are connecting to your remote computer over ssh and want to run a script which will take more than 1 hour to execute. Normal cases there are chances that your remote connection over ssh might get disconnected. If so you need to start the whole process again as once the remote connection get disconnected, the running process will also stops.