LINUX commands part 3

How many commands are there to create a file?

code: touch AF01 (touch space filename), cat > AF02 (cat space > space filename), cat >> AF03 (cat space >> space filename)

How to use copy paste function in windows?

code: cp AD01/ASD02/AF01 AD02/AF01 OR cp AD01/ASD02/AF01 AD02/ (Note: cp space file-source space file-destination) (Note: If you don't write the file name in the destination it will show the same filename from the file source i.e. AF01)

How to rename a file using copy paste in LINUX?

code: cp AD01/ASD02/AF01 AD02/AF01.new (Note: The pasted file will be renamed as AF01.new)

How to copy all contents from a directory and paste it into another directory?

code: cp AD01/* AD03/

How to cut paste files in LINUX?

code: mv AF02 AD02/AF02 (Note: mv filename or file path space file destination)

How to rename a file?

code: mv AF03 AkashFile03

How to copy paste directories?

code: cp -r AD01 AD02 (Note: cp space -r space filename file-destination)

How to see all content inside a directory?

code: ls -R AD02 or ls -Rl AD02 (Note: The "-R" stands for recursive. This command will show all contents inside a directory even the sub directories content, like the tree views in windows)

How to move an entire directory into another directory?

code: mv AD01 AD03

How to remove a file?

code: rm AF01 (Note: In LINUX we don't have access to recycle bin. That access is only present with system administrator.

How to remove an empty directory?

code: rmdir dr (Note: rmdir space directory name)

How to remove a directory that is not empty?

code: rm -r AD02

How to check the number of lines in a file?

code: wc -l fl02

How many words are there in a file?

code: wc -w fl02

How many characters are there in a file?

code: wc -c fl02

How to search a particular word in a file?

code: grep test fl02 (Note: grep space word-to-be-searched space filename. Be careful because if the word is not typed properly it may return empty since it is case-sensitive.)

How to search a particular word in a file without it being case sensitive?

code: grep -i Test fl02 (Note: The "-i" ignores the case sensitivity)

How to ignore a line which has the word test but the rest of the lines should be shown?

code: grep -v test fl02

Ho to delete all directories? [WARNING: Never do it in practice]

code: rm -rf * (Note: "*" represents all and "-rf" is for forcefully removing)

How to create 5 directories at a single command?

code: mkdir D01 D02 D03 D04 D05

How to create a hidden file?

code: touch .AkashHidden

How to unhide a hidden file?

code: mv .AkashHidden AkashUnhidden