Why do we use switch case in shell script?

Lazaro Roberts asked a question: Why do we use switch case in shell script?
Asked By: Lazaro Roberts
Date created: Tue, Jun 1, 2021 1:32 PM


Top best answers to the question «Why do we use switch case in shell script»

  • Switch case in shell scripts is an efficient alternative to the if-elif-else statement that we learned previously. The concept of the switch case statements is that we provide different cases (conditions) to the statement that, when fulfilled, will execute specific blocks of commands.


Those who are looking for an answer to the question «Why do we use switch case in shell script?» often ask the following questions:

😳 How to use switch case in bash?

  • Switch (Case) Statment in Bash The case statement is useful and processes faster than an else-if ladder. Instead of checking all if-else conditions, the case statement directly select the block to execute based on an input. Create the first program using the case statement in a shell script.

😳 Is shell script bash?

Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. Bash can also read and execute commands from a file, called a shell script…

😳 Is shell script hard?

Shell scripting is not particularly difficult for those with the prerequisites. No experience with the underlying commands available — if you don't know how to use the individual tools nor even what problems they solve then it is of course difficult to put them together in a script.

Your Answer

We've handpicked 22 related questions for you, similar to «Why do we use switch case in shell script?» so you can surely find the answer!

What is bash shell script?

  • Bash is a command line shell, and a Bash script is a set of instructions within the shell.

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What is || in shell script?

The OR Operator (||) is much like an 'else' statement in programming. The above operator allow you to execute second command only if the execution of first command fails, i.e., the exit status of first command is '1'… Second command won't execute.

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Do-while shell script in ubuntu?

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Does spacing matter in shell script?

The actual number of whitespace chars between each "thing" doesn't matter, as long as there is at least one. even though the spaces are not in quotes. ;-) even though they look identical!

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How to exit bash shell script?

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Is python better than shell script?

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Shell script for multiplying two numbers?

#!/bin/Bash echo "Enter the two numbers to be Multiplied:" read n1 read n2 answer=expr $n1 \* $n2 echo $answer

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Shell script to add two numbers?

#!/bin/Bash echo "Enter the two numbers to be added:" read n1 read n2 answer=$(($n1+$n2)) echo $answer

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What is ${ 0 * in shell script?

$0 , or ${0} , is the name of the script being executed. The ## operator is used to remove any leading string that matches the pattern */ . * is a wildcard character so */ means "any string followed by a forward slash".

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What is $2 in shell script?

$1 is the first command-line argument supplied when the script is run, $2 is the second argument, $3 is the third, etc.

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What is $3 in shell script?

$0 is the name of the script itself, $1 is the first argument, $2 the second, $3 the third, and so forth.

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What is break in shell script?

break command is used to terminate the execution of for loop, while loop and until loop. It can also take one parameter i.e.[N]. Here n is the number of nested loops to break. The default number is 1.

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What is cd in shell script?

Type. Command. The cd command, also known as chdir (change directory), is a command-line shell command used to change the current working directory in various operating systems. It can be used in shell scripts and batch files.

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What is classpath in shell script?

The classpath is a list of the class libraries that are needed by the JVM and other Java applications to run your program. There are scripts that are included with Derby that can set up the classpath to run the Derby tools… jar files to the classpath.

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What is done in shell script?

  • Keywords are for, in, do, done.
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What is eof in shell script?

The EOF operator is used in many programming languages. This operator stands for the end of the file… Similarly, in bash, the EOF operator is used to specify the end of the file. When this operator is paired with the “cat” command in bash, it can be used to serve various other purposes.

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What is eval in shell script?

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What is mv in shell script?

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What is p in shell script?

read is a bash built-in (not a POSIX shell command) that reads from standard input. The -p option makes it read as a prompt, meaning it doesn't add a trailing newline before trying to read input.

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What is pid in shell script?

One way we can create a .pid file in a script is by piping the output of $$ to a file: % echo $$ > myShell.pid % cat myShell.pid 40276. $$ is a Linux variable that returns the PID of the process from which it is called. In this case, it's the PID of the shell.

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How do you switch to a fish shell?

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