Useful CMD commands for daily use in Windows OS - GeeksforGeeks
List of uncommon useful cmd commands are as follows:
- Cipher:
Cipher.exe is a built-in command line tool in the Windows operating system that can be used to encrypt or decrypt data on NTFS drives. This tool also lets to securely delete data by overwriting it.
Cipher Switches:- /? : Displays help at the command prompt.
- /e : Encrypts the specified folders. Folders are marked so that files that are added to the folder later are encrypted too.
- /d : Decrypts the specified folders. Folders are marked so that files that are added to the folder later are encrypted too.
- /w : PathName – Removes data on unused portions of a volume. PathName can indicate any directory on the desired volume.
Syntax:
cipher /w:c
This will wipe free space on the drive. The command does not overwrite undeleted data, so you will not wipe out files you need by running this command.
- File compare:
File compare (or fc) is a great command line tool that can be used to compare files to see if there are any content or binary code differences that you can access if you are using a PC. It is a simple program that will compare the contents of text or binary files and is capable of comparing both ASCII and Unicode text. You can use this tool to display any lines from two files or two sets of files that do not match up with the others.
Switches:- /b – This switch will perform a binary comparison.
- /c – If you need to do a case insensitive comparison, use this switch.
- /a – This switch will make FC show only the first and last lines for each group of differences.
- /u – Use this switch to compare files as Unicode text files.
- /l – This will compare your files as ASCII text.
- /n – This switch can only be used with ASCII but it will show all the corresponding line numbers.
Syntax:
Simply type "fc" and then the directory path and file name of the two files you want to compare.
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