Modifiable bash Environment Variables

Environment variable name	Usage of Variables
Cdpath	The path that contains the CD command to be searched one by one. The CD command searches for the directory name that is passed to it as a parameter in these paths. If cdpath is not set, run the CD command to find the current directory.
Editor	The Default Editor used by the user in the program, such as the e-mail program elm
Env	Find the path of the configuration file in Linux
Home	The name of the home directory when you log on for the first time
Histfile	Path Name of the file storing historical records
Path	Search all directories of commands or programs
PS1	Shell prompt displayed in the command line
PWD	Name of the current working directory
Term	Type of console terminal used by the user

Modifiable bash Environment Variables