Script Run The explanation and the results for the four cases are below. In the first case, the parameters are regarded as one long quoted string: Case 2 (unquoted) – the string is broken into words by the for loop: Case 3 – it treats each element of $@ as…
Comparison Operators String Comparison Description Str1 = Str2 Returns true if the strings are equal Str1 != Str2 Returns true if the strings are not equal -n Str1 Returns true if the string is not null -z Str1 Returns true if the string is null Numeric Comparison Description expr1 -eq…
The grep Command The grep command searches a file or files for lines that have a certain pattern. Syntax Options Sr. No. Option & Description 1. -v (Prints all lines that do not match pattern.) 2. -n (Prints the matched line and its line number.) 3. -l (Prints only the…
Syntax Example Case Day Wise Decision Output Case Transport Mode
Syntax Example Taking input from the user Taking Input in Command Line $1 is the first argument. To run ./script 5
Syntax Example Nested if-else
Syntax Example
Until Loops Sometimes you need to execute a set of commands until a condition is true. Syntax Example
For Loops The while loop enables you to execute a set of commands repeatedly until some condition occurs. It is usually used when you need to manipulate the value of a variable repeatedly. Syntax Example
While Loops The while loop enables you to execute a set of commands repeatedly until some condition occurs. It is usually used when you need to manipulate the value of a variable repeatedly. Syntax Scripts while.sh passwd.sh nameserver.sh