Miscellaneous and Shell Programing Commands

Unix :

 Miscellaneous Commands :

date : Prints system date and time

cal : displays calendar

exit : cause process to terminate/ shell to exit

clear : clears the terminal screen

banner : banner command in Linux is used to print the ASCII character string in a large letters to standard output.
banner has a default capacity of 10 characters in a word. After that, you have to give space

Banner 1234567890

Shell Programing : 

 

read : used to read a line from standard input/ read from file

expr : used to evaluate expressions and arguments as an expression

echo : displays line of text and arguments to standard output

sh : sh is a shell, which is command-line language interpreter

source :  is a shell built-in command which is used to read and execute the content of a file(generally set of commands), passed as an argument in the current shell script.

To pass a path_name of a file as an argument where, /home/sc/sourcefolder/ is the file directory here. The content of the file is written

sleep : sleep command is used to create a dummy job. A dummy job helps in delaying the execution.

test - check file types and compare values

test 100 -gt 99 && echo "Yes, that's true." || echo "No, that's false."

test 100 -lt 99 && echo "Yes." || echo "No."