Course
Title: Operating Systems
Course
Code: CSE323
Submitted To:
Md Sabab Zulfiker
Lecturer
Department of Computer Science and Engineering
Daffodil International University
Submitted By:
Name: Kawshik Ahmed Ornob
ID: ***-**-*****
Section: 59_D
Department of Computer Science and Engineering
Experiment
No: 05
Experiment
Name: Decision making and
loop control in shell script
· Make directory and a file inside the
directory to do further operations.
· Give all permissions to the file to read, write and execute.
· Use “nano filename” to open the text file.
·
In linux coding we have to use these special signs instead of
these:
For
(==) use “ –eq ”
For
(!=) use “ –ne ”
For
(>) use “ –gt ”
For
(<) use “ –lt ”
For
(>=) use “ –ge ”
For
(<=) use “ –le ”
· here is a if…else method code in linux . for else if we can use “elif” and to finish the if else condition we have to write “fi” at the end.
· We can also do multiple condition cases using “&&”
and “||”
Such as and, or.
·
We can also use if …else to match strings. Just use “==” for
-eq
