Linux-related source commands

Linux source command usage: sourceFileName function: read and execute the command in FileName in the current bash environment. Note: this command is usually replaced by a command. For example, source. bash_rc and. bash_rc are equivalent. Note... linux-related source Command usage: source FileName function: read and execute the command in FileName in the current bash environment. Note: this command is usually replaced by the "." command. For example, source. bash_rc and. bash_rc are equivalent. Note: the difference between the source Command and shell scripts is that the source command is executed in the current bash environment, and the scripts is to start a sub-shell to execute the command. Such as www.2cto.com. if you write the environment variable (or alias) command into scripts, it will only affect the sub-shell and cannot change the current BASH. Therefore, through the file (command column) when setting environment variables, use the source command.