Zirconium Linux From Scratch - Version r12.4-45-systemd

Chapter 7. System Utilities

Which-2.23 and Alternatives

The presence or absence of the which program in the main LFS book is probably one of the most contentious issues on the mailing lists. It has resulted in at least one flame war in the past. To hopefully put an end to this once and for all, presented here are two options for equipping your system with which. The question of which “which” is for you to decide.

Introduction to GNU Which

The first option is to install the actual GNU which package.

Package Information

  • Download (HTTP): https://mirror.csclub.uwaterloo.ca/gnu//which/which-2.23.tar.gz

  • Download SHA256 Sum: a2c558226fc4d9e4ce331bd2fd3c3f17f955115d2c00e447618a4ef9978a2a73

  • Download MD5 sum: 1963b85914132d78373f02a84cdb3c86

  • Download size: 197 KB

  • Estimated disk space required: 1.2 MB

  • Estimated build time: less than 0.1 SBU

Installation of Which

Install which by running the following commands: 

./configure --prefix=/usr &&
make

This package does not come with a test suite.

Now, as the root user: 

make install

Contents

Installed Program: which
Installed Libraries: None
Installed Directories: None

Short Descriptions

which

shows the full path of (shell) commands installed in your PATH