1.copy a file from source location to destination:
cp source destination:
Ex: cp /root/qwertyt/doc.ppt /root/qwertyt/test2
2.Lists the files in the present directory
ls
3.Lists the last few files created
ll -lrt
4.Change Directory
cd
Ex: cd test2
5.Make Directory:
mkdir
6.Remove file :
rm -rf filename
7.Change access permissions
chmod -Rf 755 directory
8.Displays first n lines
head -n
Ex: head -5 test5 9.Displays last n linestail -n
Ex: tail -5 test5
10.Print Working Directory:
pwd
11.cat:
Display the contents of a file
12.Clear terminal screen:
clear
13.Compare two files:
cmp
14.Display or change the date & time:date
15.Display the differences between two files:
diff
16.Exit the shell:
exit
17.Search file(s) for lines that match a given pattern:
grep
18.Print user and group id's;
id
19.List active jobs:
jobs
20.Stop a process from running:
kill
21.Help manual:
man
22.Rename files;
rename
23.Reverse lines of a file:
rev
24.create a new file:
touch
