Basic Linux Command

অপারেটিং সিস্টেম লিনাক্স আমাদের
কাছে তেমন একটা জনপ্রিয় না হলেও
আমাদের মাঝে অনেকেই লিনাক্স ব্যবহার
করে থাকি। যারা ব্যবহার করছেন
বা আগামীতে করার চিন্তা আছে তাদের
জন্য কিছু Basic Commands
আশা করি কাজে লাগবে

For changing directory / to /etc
[root@pc1 /]# cd /etc
One step back /etc to /
[root@pc1 etc]# cd ..
Go to previous working directory
[root@pc1 /]# cd –
Go to current login user home
directory
[root@pc1 etc]# cd ~
Show the contents of /etc in single
color
[root@pc1 ~]# dir /etc
Show the contents of /etc in
different colors with nature of
contents
[root@pc1 ~]# Ls /etc
create a folder on root partition
[root@pc1 ~]# mkdir /disk
Create a folder in /disk
[root@pc1 ~]# mkdir /disk/dir
Create multiple folder in multiple
directories with single command
[root@pc1 ~]# mkdir /etc/dir1 /var/
dir2 /usr/dir3
Create multiple folder in same
directory
[root@pc1 ~]# mkdir dir1 dir2 dir3
Copy a file in directory
[root@pc1 disk]# cp file dir
Copy a file from /disk/file and paste
it in /disk/dir/
[root@pc1 disk]# cp /disk/file /disk/
dir
Copy a directory with –r option
[root@pc1 disk]# cp -r dir dir2
Copy a file from /disk/file and paste
it in /etc with myfile name
[root@pc1 disk]# cp /disk/file /etc/
myfile
Remove a file
[root@pc1 disk]# rm file
Remove a file with forcefully option
[root@pc1 disk]# rm –f file
Remove a directory with out –r
option and you face will an error
[root@pc1 disk]# rm dir
Remove a directory with –r option
[root@pc1 disk]# rm -r /disk
Remove a directory with forcefully
option
[root@pc1 disk]# rm -rf dir
Move /etc/dir1 to /disk/ with
different name
[root@pc1 disk]# mv /etc/dir1 /
disk/mydir
Rename the folder name mydir to dir
[root@pc1 disk]# mv /disk/mydir /
disk/dir
Rename the file name with myfile
[root@pc1 disk]# mv file myfile
Read a file page by page with less
command
[root@pc1 disk]# less /etc/
grub.conf
Read a file page by page with more
command
[root@pc1 disk]# more /etc/
qrub.conf
Read first ten lines of grub.conf
[root@pc1 disk]# head /etc/
grub.conf
Read last ten lings of grub.conf
[root@pc1 disk]# tail /etc/grub.conf
Read first 12 lines with –n option
[root@pc1 disk]# head -n 12 /etc/
grub.conf
Read last 11 lines with –n option
[root@pc1 disk]# tail -n 11 /etc/
grub.conf
Copy the contents of /etc/grub.conf
in /disk/file
[root@pc1 disk]# cat /etc/grub.conf
> /disk/file
Append the contents /etc/mtab in /
etc/file
[root@pc1 disk]# cat /etc/mtab >> /
disk/file
Merging tow commands with pipe
sign output of the first command is
input of second command
[root@pc1 disk]# cat /etc/squid/
squid.conf I more
Count the total lines of squid.conf
[root@pc1 disk]# cat /etc/squid/
squid.conf I wc -L
Show only spool words in
squid.conf
[root@pc1 disk]# cat /etc/squid/
squid.conf I grep spool
Flush the contents of file
[root@pc1 disk]# cat /dev/null > /
var/log/messages.

সোর্সঃ বিভিন্ন ব্লগ

Published by: Hasan Misbah