Which command is used to remove the values stored in a shell variable?

Julianne Ondricka asked a question: Which command is used to remove the values stored in a shell variable?
Asked By: Julianne Ondricka
Date created: Sun, Jul 11, 2021 8:56 AM

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Top best answers to the question «Which command is used to remove the values stored in a shell variable»

Unsetting or deleting a variable directs the shell to remove the variable from the list of variables that it tracks. Once you unset a variable, you cannot access the stored value in the variable. The above example does not print anything. You cannot use the unset command to unset variables that are marked readonly.

FAQ

Those who are looking for an answer to the question «Which command is used to remove the values stored in a shell variable?» often ask the following questions:

😳 Which command is used to debug a shell script?

Bash shell offers debugging options which can be turn on or off using the set command: set -x : Display commands and their arguments as they are executed. set -v : Display shell input lines as they are read.

😳 Which command is used to determine the default shell?

To display the environment variables that are currently set on your system, use the env command. You can also use the env command to identify your login shell. It is specified in the SHELL environment variable. In the previous example, the shell is set to /bin/csh (the C shell).

😳 Which shell is used by linux as the defualt command interpreter?

bash also known as bourne again shell

Your Answer

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Where is the prompt variable stored in bash?

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What is readonly variable in shell?

Read-only Variables

After a variable is marked read-only, its value cannot be changed. For example, the following script generates an error while trying to change the value of NAME − #!/bin/sh NAME="Zara Ali" readonly NAME NAME="Qadiri"

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