function::set_user_char - Linux
Overview
set_user_char enables users to specify a custom character to represent the current user in a terminal window or any other application that supports the PROMPT_COMMAND environment variable. It’s commonly used in Linux shells to customize the command prompt and enhance visual appeal.
Syntax
set_user_char <character>
Parameters
| Parameter | Description |
|—|—|
| <character>
| The desired character to represent the current user. |
Options/Flags
None
Examples
- Set the current user character to a heart symbol:
set_user_char ♥
- Display a custom user character using the
PROMPT_COMMAND
variable:
PROMPT_COMMAND='echo -ne "$(set_user_char ♪)"'
Common Issues
- Character not displayed: Ensure that the character you specify is valid and supported by your terminal emulator.
- No visible change: Verify that the
PROMPT_COMMAND
variable is set correctly in your shell configuration file (e.g.,.bashrc
).
Integration
set_user_char can be integrated with other shell commands to tailor the command prompt further. For instance:
PROMPT_COMMAND='echo -ne "$(set_user_char ♪) $(date +%T) "'
This command will display the user character, the current time, and a space before the prompt.
Related Commands
export
: Sets environment variables.PROMPT_COMMAND
: Sets the command to execute before displaying the command prompt.