The export command in Linux is used for creating environment variables. You can use it like this: export myvar or a shorthand like this to assign it a value immediately: export myvar=5 You can see the value of exported variables with the echo command: echo $myvar

The ‘export’ command in Linux is primarily used to set environment variables. These variables are then available to child processes spawned by the shell. Let’s look at a simple example: export USER_NAME="Anton" echo $USER_NAME # Output: # Anton

Well, it generally depends on the shell. For bash, it marks the variable as "exportable" meaning that it will show up in the environment for any child processes you run. Non-exported variables are only visible from the current process (the shell). From the bash man page: export [-fn] [name [=word]]... export -p

The syntax for the export command is: export [-f] [-n] [name[=value]...] or export -p Running the command without any options outputs all the exported variables and functions: Exit Status The command runs successfully unless you pass an invalid option or an invalid variable [name].

The export command has a simple syntax in Linux. It includes the export command, options, names & values. And the syntax is given below export [OPTION]... [ [NAME]= [VALUE]]... Note: In the syntax above, OPTION is enclosed by a square bracket and followed by 3 dots representing that more than one option can be used at the same time.