How to search history commands very effectively in bash shell command line? Just enter CTRL+r The function of above is: (reverse-i-search)`’: It is very fast and efficient. Read more: How to effectively disable a Linux user account? How to add a prefix string at the beginning of each line in Bash shell script on Linux? Deleting a Specific Line From a Text File in Command Line in Linux How to process a file line by line in Bash? Add Inline Comments for Multi-line Command in Bash Script Floating Point in Bash Shell How to change the commit message of a commit in the history (not HEAD)? How to find the history of updated packages by apt-get or aptitude?