Nt1330 Unit 7 Lab 3

Perhaps many are confused about the existing commands linux, this time I will discuss about the linux basic commands used along with examples of its use.

1: Seeing identification (id and group id number)

$ Id

2: Looking the calendar date of the system

a. Looking at the current date

$ Date

b. See calendar

$ Cal 9 2002
$ Cal -y

3: Seeing the machine identity

$ Hostname
$ Uname
$ Uname -a

4: See who is currently active

a. Know anyone who is active

$ W
$ Who

$ Whoami

b. Changing finger information

$ Chfn
Changing finger information . Password:
Name [user wks]:
Office []: Programming Lab 2
Office Phone []: 2301
Home Phone []: 5947280

Finger information changed.

c. View information finger

$ Finger
$ Finger

5: Using the manual

Featuring a complete file or directory that is composed of a file name, size, date modified, owner, group, and mode or attributes.

$ Ls -l / etc

i. Show all files and directory contents. This argument will cause the process run a little long, if the process will be terminated can use ^ c

$ Ls -R / usr

10: Viewing the file type

$ File
$ File *
$ File / bin / ls

11: Copying files

a. Copying a file. Give the option - i for interactive question if the file already exists.

$ Cp / etc / group f1
$ Ls -l
$ Cp -i f1 f2
$ Cp -i f1 f2

b. Copy to directory

$ Mkdir backup
$ Cp f1 f3
$ Cp f1 f2 f3 backup
$ Ls backups
$ Cd backup
$ Ls

12: Viewing the contents of a file

a. Using instruction paint

$ Cat f1

b. Displays files in full screen

$ More f1
$ Pg f1

13: Renaming files

a. Using instruction mv

$ Mv f1 prog.txt
$ Ls

b. Transferring files to another directory. If the last argument is the name of the directory, the files will be transferred to the directory.

$ Mkdir mydir
$ Mv f1 f2 f3 mdir

14: Deleting files

$ Rm f1
$ Cp mydir / f1 f1
$ Cp mydir / f2 f2
$ Rm f1
$ Rm -i f2

15: Looking for a word or phrase in the file

$ Grep root / etc / passwd
$ Grep ": 0:" / etc / passwd
$ Grep student / etc /