.\" assert.1 - manual page for the assert command .\" Copyright (C) 2009 Lars Wirzenius .\" .\" This program is free software: you can redistribute it and/or modify .\" it under the terms of the GNU General Public License as published by .\" the Free Software Foundation, either version 3 of the License, or .\" (at your option) any later version. .\" .\" This program is distributed in the hope that it will be useful, .\" but WITHOUT ANY WARRANTY; without even the implied warranty of .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the .\" GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see . .\" .TH ASSERT 1 .SH NAME assert \- make sure given conditions are true .SH SYNOPSIS .B assert .RI [ --file =\fIFILE\fR] .SH DESCRIPTION .B assert checks that specific conditions are true. At the moment, it can check that a file has a given type (MIME or file(1)). .SH EXAMPLE The following command checks that the file NEWS has the MIME type text/plain. .sp 1 .ti +4 .nf assert mime-type-is text/plain NEWS .fi