#### Beyond Linux® From Scratch (System V Edition) - Version 12.3

### Chapter 11. General Utilities

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# lsof-4.99.0

## Introduction to lsof

The lsof package is useful to LiSt Open Files for a given running application or process.

This package is known to build and work properly using an LFS 12.3 platform.

### Package Information

- Download (HTTP): https://github.com/lsof-org/lsof/releases/download/4.99.0/lsof-4.99.0.tar.gz

- Download MD5 sum: 8c858675f6d6e137df9b4e26ad6c46e8

- Download size: 1.1 MB

- Estimated disk space required: 14 MB (with tests)

- Estimated build time: 0.1 SBU (with tests)

### lsof Dependencies

#### Required

libtirpc-1.3.6

#### Optional

Nmap-7.95 (with a symbolic link nc pointing to ncat in `/usr/bin`; used in tests)

## Kernel Configuration

To run the tests, the following option should be enabled in the kernel configuration:

    General setup --->
      [*] POSIX Message Queues                                        [POSIX_MQUEUE]

## Installation of lsof

Install lsof by running the following commands:

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

The tests should be run as the `root` user. They require that the POSIX message queues are enabled in the kernel, and that Nmap-7.95 be installed with a symbolic link `/usr/bin/nc` pointing to ncat.

    make check

Now, as the `root` user:

    make install

## Command Explanations

`--disable-static`: This switch prevents installation of static versions of the libraries.

## Contents

Installed Program: lsof
Installed Libraries: liblsof.so
Installed Directories: None

### Short Descriptions

lsof | lists open files for running processes
`liblsof.so` | contains an interface for applications to list open files

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