function::sid - Linux

Overview

The sid command converts an ASCII string into a Session Identifier (SID). It is commonly used by developers to generate unique identifiers for sessions or records in databases or other applications.

Syntax

function::sid [-h] [-x] [-r] [-s SEED] STRING

Options/Flags

  • -h: Print help and usage information.
  • -x: Print the SID in hexadecimal format.
  • -r: Reverse the endianness of the SID.
  • -s SEED: Specify a seed value to use for the SID generation. The default seed is the current Unix timestamp.

Examples

Generate a basic SID:

function::sid my_string

Output:

0x7e3d85f7872f9a9c

Generate a reversed SID:

function::sid -r my_string

Output:

0x9ca9f92f78f73d7e

Generate a hexadecimal SID:

function::sid -x my_string

Output:

7e3d85f7872f9a9c

Common Issues

  • If the specified seed is invalid, the command will fail with an error message.
  • Make sure to specify the -x flag when using sid in applications that expect hexadecimal SIDs.

Integration

The sid command can be integrated with other tools to generate unique identifiers for various purposes, such as:

  • Database record IDs
  • Session tokens
  • Temporary file names

Related Commands

  • uuidgen: Generate universally unique identifiers (UUIDs).
  • makekey: Generate secure random keys.