This file is indexed.

postinst is in xz-utils 5.1.1alpha+20120614-2ubuntu2.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
#!/bin/sh
set -e

slave () {
	dir=$1 filename=$2 target=$3
	echo "--slave $dir/$filename $filename $dir/$target"
}

update-alternatives --install /usr/bin/lzma lzma /usr/bin/xz 20 $(
	slave /usr/share/man/man1 lzma.1.gz xz.1.gz
	slave /usr/bin unlzma unxz
	slave /usr/share/man/man1 unlzma.1.gz unxz.1.gz
	for util in cat more less diff cmp grep egrep fgrep
	do
		slave /usr/bin lz$util xz$util
		slave /usr/share/man/man1 lz$util.1.gz xz$util.1.gz
	done
)