ctermid - Linux
Overview
ctermid returns the name of the controlling terminal for a user. It is typically used to generate unique filenames for temporary files or other purposes that require a unique identifier associated with the user’s session.
Syntax
ctermid()
Options/Flags
None
Examples
Example 1: Get the name of the current terminal
$ ctermid
/dev/pts/1
Example 2: Generate a temporary filename based on the terminal name
$ mktemp /tmp/my_temp_file.$$$(ctermid)
/tmp/my_temp_file.12345
Common Issues
None
Integration
ctermid can be combined with other commands to create unique identifiers or temporary files. For example, it can be used with mktemp to create a temporary file in the current working directory:
mktemp $$(ctermid)
Related Commands
- tty – Returns the name of the terminal for a given file descriptor.
- ptsname – Returns the name of a pseudo-terminal device.
- ttyname – Returns the name of the terminal associated with a given file descriptor.