Accessing your historical bash commands instantly !

As a tester, you might be testing several systems and each have different commands. A common interface might be the bash shell.

How do you get all the previous commands you typed in bash before? Once you close the bash command?

I struggled with this for a few days, and even wrote down commands in notepad, so that i can use them later. Later, I wondered how easy my work would become if i could type the first word of my command and i could search through my bash history.

The problem

Lets say, i used the following command a few days ago to encrypt a file using gpg.

$ gpg --encrypt -r <> REGISTER.ABCD.01102018.917.csv 

Today, I want to encrypt a new file. I know I used gpg before, but I don't remember the exact syntax. 

So I want to type gpg in my command prompt and then use my arrow keys
"up" or "down" to search through my bash history.


Add the following two lines to your ~/.inputrc

"\e[A": history-search-backward
"\e[B": history-search-forward
"\e[C": forward-char
"\e[D": backward-char

Now you are able to search through your history.

Another neat thing you can do is to increase the size of your history permanently, so that you have a huge list of commands to choose from.

Edit your ~/.bashrc file and add the following two lines.

export HISTSIZE=1000000
export HISTFILESIZE=1000000000


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