dpkg/man/deb-prerm.man

.\" dpkg manual page - deb-prerm(5)
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.\" Copyright © 2016 Guillem Jover <guillem@debian.org>
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.
.TH deb\-prerm 5 "%RELEASE_DATE%" "%VERSION%" "dpkg suite"
.nh
.SH NAME
deb\-prerm \- package pre-removal maintainer script
.
.SH SYNOPSIS
prerm
.
.SH DESCRIPTION
A package can perform several pre-removal actions via maintainer
scripts, by including an executable \fIprerm\fP file in its control
archive (i.e. \fIDEBIAN/prerm\fP during package creation).
.PP
The script can be called in the following ways:
.TP
\fIprerm\fP \fBremove\fP
Before the package is removed.
.TP
\fIold-prerm\fP \fBupgrade\fP \fInew-version\fP
Before an upgrade.
.TP
\fInew-prerm\fP \fBfailed-upgrade\fP \fIold-version new-version\fP
If the above \fBupgrade\fP fails.
.TP
\fIprerm\fP \fBdeconfigure in-favour\fP \fInew-package new-version\fP
.TQ
    [ \fBremoving\fP \fIold-package old-version\fP ]
Before package is deconfigured while dependency is replaced due to conflict.
.TP
\fIprerm\fP \fBremove in-favour\fP \fInew-package new-version\fP
Before the package is replaced due to conflict.
.
.SH SEE ALSO
.BR dpkg (1).