Basic Linux Commands Part 2

Create file

touch <filename> -> this will create any kind of file

Add content in file

vi <filename> or vim <filename> -> after executing this command, vim editor will open, to write content press 'i' to enter in insert mode.

Once writing is finish press 'esc' -> ':wq!' -> 'enter'

View file's content

• cat <filename> -> by executing this command we can view file's content

  

• vi <filename> -> we can use vi command to see contents of file

  

View only top few lines from file

head -n <no. of lines> <filename> -> this command shows mentioned number of lines from top

View only bottom few lines from file

tail -n <no. of lines> <filename> -> this command shows mentioned number of lines from top

Remove file or directory

• rm <filename> -> this command removes mentioned file

• rm <file1> <file2> -> use of this command removes multiple files

• rmdir <dirname> -> this will removes only empty directory

• rm -r <dirname> -> this will removes empty as well as non empty directory

Check previous commands

history -> this command gives commands which you have run till now

Difference between two files

diff <file1> <file2> -> shows diff between two files