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If you use Linux, you can password-protect any file, which is a good idea if you want to keep it in the cloud or carry it around in a hard drive. We’ll use gpg, a component of GnuPG, to encrypt a file in Linux. Run this command to encrypt the file using a password to …

How to secure a file using a password in Linux? Read More »

Solution –                                   or grep  ‘string1\|string2\|string3’ filename.txt Below are the content of filename.txt –              Linux             Centos             Fedora             Redhat Suppose we have to check if the file contains Centos and Redhat. For that we can run below commands –  …

How to search multiple strings using grep ? Read More »