A security vulnerability in the GNU Bourne Again Shell (Bash), the command-line shell used in many Linux ..
If given condition is true then command1 is executed otherwise command2 is executed. Syntax: if condition ..
if condition which is used for decision making in shell script, If given condition is true then command1 ..
A pipe is a way to connect the output of one program to the input of another program without any temporary ..
eg: $ myshell foo bar Shell Script name i.e. myshell First command line argument passed to myshell ..
Wildcard types: 1. * – Matches any string or group of characters. 2. ? – Matches any single ..
Use to get input (data from user) from keyboard and store (data) to variable. Syntax: read variable1, ..
By default in Linux if particular command/shell script is executed, it return two type of values which ..
Mainly three types of quotes are used. 1. ” – Double quotes: Anything enclose in double ..
used to perform arithmetic operations in shell scripts. Synatax: $ expr op1 operator op2 eg: $ expr ..