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Kishinchand Chellaram College, Mumbai - 20.: FY / SY / TY B.Sc. (I.T.) Semester

This document introduces basic Linux commands and editors. It lists 21 common Linux commands for file manipulation, including cat, touch, cp, rm, ls, grep, head, and tail. It also introduces the vi text editor, explaining how to enter insert mode to add text, press escape to exit insert mode, and use ":wq" to write changes and quit. The document serves as instructions for a practical session on basic Linux commands and editors for an IT course at Kishinchand Chellaram College, Mumbai.

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Harmit Warang
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78 views9 pages

Kishinchand Chellaram College, Mumbai - 20.: FY / SY / TY B.Sc. (I.T.) Semester

This document introduces basic Linux commands and editors. It lists 21 common Linux commands for file manipulation, including cat, touch, cp, rm, ls, grep, head, and tail. It also introduces the vi text editor, explaining how to enter insert mode to add text, press escape to exit insert mode, and use ":wq" to write changes and quit. The document serves as instructions for a practical session on basic Linux commands and editors for an IT course at Kishinchand Chellaram College, Mumbai.

Uploaded by

Harmit Warang
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Kishinchand Chellaram College, Mumbai – 20.

FY / SY / TY B.Sc. (I.T.) Semester_______

Practical 1
Introduction to Basic Linux Commands and Editors

Basic Commands Used:

1. cat > filename

Using this command, we can create file and write

2. cat filename

It allows user to view the content

3. touch

It allows user to create empty file


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

4. cat file1 > file2

It copies the content of file 1 to file 2 .it overwrites the content of file

5. cat file1 >> file3

It copies the content of file 1 to file 3 .it doesn’t overwrite the content of file.

6. cp file1 file 3

It copies the content file1 to file3

7. rm –i file3

It asks before deleting any file.


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

8. rm –rf file2

It removes file forcefully.

9. ls –a

It shows all the files

10. ls f*

It shows the files starting with f


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

11. ls ?4

It displays the list of file with any character as first character and ‘4’ following it

12. ls [ahf]*

It lists files starting with names a,h,f

13. ls –l

It is used for long listing of files


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

14. chmod 777 filename

It is used for changing the file permissions

15. mkdir dirname

It creates new directory

16. mkdir –p dirname

It will create a directory using path


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

17. rmdir dirname

It removes directory

18. grep write

It searches for write word

19. head filename

It will give first 10 lines of the file by default


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

20. head –number filename

It will give the specified number of lines of the file

21. tail filename

It will give last 10 lines of the file by default

22. tail filename –n number


Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

It will give the last number of lines of the file

The VI Editor

When we type the command ‘vi’ on the Terminal and press enter, it will go to the vi editor mode.

In the VI Editor, when you press I, it will take you to ‘Insert Mode’.

Inside the Insert Mode, we can write anything we want to.

When you want to save the contents written in VI editor, press ‘Esc’.

After pressing Esc button, to exit the Editor, press ‘:wq’ (Colon then press w and q)
Kishinchand Chellaram College, Mumbai – 20.
FY / SY / TY B.Sc. (I.T.) Semester_______

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