show environment variables

[Linux] fully interpreting Linux environment variables and linux environment variablesI. Overview Environment Variable: Bash shell uses a feature called "environment variables" to store information about shell sessions and work environments. It

Fully interpreting Linux environment variablesI. Overview Environment Variable: Bash shell uses a feature called "environment variables" to store information about shell sessions and work environments. It allows you to store data in memory, this

Kinds:? Set: Used to display local variables, display variables for the current shell, including variables for the current user? ENV: Used to display environment variables and display variables for the current user.? Export: Used to display and set

This article address:http://www.cnblogs.com/archimedes/p/linux-envionment-variables.html, reprint please indicate source address.1. What are environment variablesBash Shell uses a feature called environment variables to store information about shell

Bash Shell uses a feature called environment variables to store information about shell sessions and the work environment, which allows you to store data in memory so that programs and scripts running on the shell can accessIn the bash shell,

To make shell programming more effective, the system provides some shell variables. Shell variables can save variable names such as pathnames, file names, or numbers. Shell regards any settings as text strings. There are two variables: local and to

Bash Shell uses a feature called environment variables to store information about shell sessions and the work environment.Global environment variablesThis is visible to both the shell session and all the spawned child shells. Local variables are

Linux environment variable 1. Environment variable is a string containing environment information about the system and the currently logged on user, some software programs use this information to determine where to place files (such as temporary

The importance of a Linux environment variable conceptOriginally used for Linux to learn the robot operating system (ROS), because have not been exposed to Linux, so do not understand some of the key concepts, resulting in a lot of detours, such as

When you debug a program, when the program is stopped, you can use the print command (abbreviated as P) or the synonymous Command inspect to view the running data of the current program. The format of the print command is: Print Print/ Is an