(features.info)Bourne Shell Variables
Bourne Shell Variables
Bash uses certain shell variables in the same way as the Bourne
shell. In some cases, Bash assigns a default value to the variable.
A list of characters that separate fields; used when the shell
splits words as part of expansion.
A colon-separated list of directories in which the shell looks for
The current user's home directory.
A colon-separated list of directories used as a search path for
the `cd' command.
A colon-separated list of files which the shell periodically checks
for new mail. You can also specify what message is printed by
separating the file name from the message with a `?'. When used
in the text of the message, `$_' stands for the name of the
The primary prompt string.
The secondary prompt string.
The index of the last option processed by the `getopts' builtin.
The value of the last option argument processed by the `getopts'
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