Set the environment variable command in Linux-export

Syntax:Export [-p] [variable name] = [variable setting value]

Parameter description:

[-P] lists all environment variables that the shell assigns to the program.

Command function:Display or set environment variables.

 

Example:

Export Path =/mnt/updata/mips-4.3/bin: $ path

# This statement sets the system variable. The ": $ path" following the system variable isAddItem.

 

Export rua_dir =/mnt/updata/mrua_smp8654f_3_7_0_dev.mips/mrua_src

# This statement is used by the user to set user variables, which is equivalent to setting system variables in windows.

 

Instructions for use:

When executing a program in shell, shell provides a set of environment variables. Export allows you to add, modify, or delete environment variables,

For subsequent programs. The effect of export is only true for this login operation.