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.IX Title "deb-postinst 5"
.TH deb-postinst 5 2026-03-06 1.23.7-dirty "dpkg suite"
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.SH NAME
deb\-postinst \- package post\-installation maintainer script
.SH SYNOPSIS
.IX Header "SYNOPSIS"
\&\fBDEBIAN/postinst\fR
.SH DESCRIPTION
.IX Header "DESCRIPTION"
A package can perform several post\-installation actions via maintainer
scripts, by including an executable \fIpostinst\fR file in its control
archive (i.e. \fIDEBIAN/postinst\fR during package creation).
.PP
The script can be called in the following ways:
.IP "\fIpostinst\fR \fBconfigure\fR \fIold\-version\fR" 4
.IX Item "postinst configure old-version"
After the package was installed.
.IP "\fIpostinst\fR \fBtriggered\fR ""\fItrigger\-name...\fR""" 4
.IX Item "postinst triggered ""trigger-name..."""
After the package was triggered.
The list of space\-separated \fItrigger\-name\fRs is passed as the second
argument.
.IP "\fIold\-postinst\fR \fBabort\-upgrade\fR \fInew\-version\fR" 4
.IX Item "old-postinst abort-upgrade new-version"
If \fIprerm\fR fails during \fBupgrade\fR or fails on \fBfailed\-upgrade\fR.
.IP "\fIold\-postinst\fR \fBabort\-remove\fR" 4
.IX Item "old-postinst abort-remove"
If \fIprerm\fR fails during \fBremove\fR.
.IP "\fIpostinst\fR \fBabort\-deconfigure\fR \fBin\-favour\fR \fInew\-package\fR \fInew\-version\fR" 4
.IX Item "postinst abort-deconfigure in-favour new-package new-version"
.PD 0
.IP "\ \ \ \ \ \ \ [ \fBremoving\fR \fIold\-package\fR \fIold\-version\fR ]" 4
.IX Item " [ removing old-package old-version ]"
.PD
If \fIprerm\fR fails during \fBdeconfigure in\-favour\fR of a package.
.IP "\fIpostinst\fR \fBabort\-remove\fR \fBin\-favour\fR \fInew\-package\fR \fInew\-version\fR" 4
.IX Item "postinst abort-remove in-favour new-package new-version"
If \fIprerm\fR fails during \fBremove in\-favour\fR for replacement due to conflict.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBdpkg\fR\|(1).