function::egid - Linux

Overview

function::egid is a bash shell builtin command used to retrieve the effective group ID of the current shell. This ID represents the group that the shell is currently running as. It’s commonly used in scripts and automation to control file and directory access permissions.

Syntax

function::egid

Options/Flags

This command has no options or flags.

Examples

  • Retrieve the effective group ID of the current shell:
function::egid
  • Example output:
100
  • Assign the effective group ID to a variable:
group_id=$(function::egid)
echo $group_id
  • Example output:
100

Common Issues

  • egid is a shell builtin and may only be used within the shell environment. Attempting to execute it as an external command will result in an error.

Integration

  • Use egid with the setgid command to set the effective group ID for a specific process or script.
  • Combine egid with the id command to display additional information about the current user, including both real and effective IDs.

Related Commands

  • id
  • setgid
  • getgroups