3. Types of Commands
• File Handling commands
• Text Processing Commands
• System Administration Commands
• Process Management Commands
• Network Commands
etc…
4. File Handling commands
• mkdir - make directories
Syntax: mkdir [OPTION] DIRECTORY...
eg. mkdir Movies
• ls - list directory contents
Syntax: ls
eg. : ls
• cd - changes directories
Syntax: cd Directory1/Directory2
eg. : cd Desktop/presentation
cd .. ,cd /
5. =>Continued
• pwd - print name of current working directory
Syntax: pwd
eg. : pwd
• cp - copy files and directories
Syntax: cp sourceFile destFile
eg.: cp file1 file2
cp file1 presentation
• mv - move (rename) files
Syntax: mv sourcefile destDirectory
eg. : mv hello presentation
mv hello hi
6. =>Continued
• rw - remove files or directories
Syntax: rw fileName
eg. : rw hello.txt
rw –rf pictures
• find - search for files in a directory hierarchy
Syntax: find [path] [pattern]
eg.: find file1.txt
• history - prints recently used commands
Syntax: history
eg. : history
8. How to Execute C/C++ programmes in
Linux
1. Install compiler => gcc/g++ compiler
2. Write a programme
3. Give commands to command shell
4. And u did that.
9. COMPILERS
gcc Compiler
• GCC is installed by
default, in Ubuntu.
Installing g++ Compiler
• Open command shell
• Command:sudo apt-
get install g++
10. Write a C/C++ programme
• Open text editor
• Write your code
• Save it with .c or .cpp extension
• Create an empty document in the
same directory to store output.
11. Execute Your Programe
• Open command shell
• Command: compiler fileName –o outputfile
– Ex.
1. gcc cHello.c –o output1
2. g++ cppHello.cpp -o output2
• Command : ./outputFileName =>To see the
content of outputfile
