Xref: wupost comp.text.tex:10959 sub.tex:2188 alt.sources:4042 Path: wupost!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!nntp-server.caltech.edu!ira.uka.de!unido!mpirbn!u502sou From: u502sou@mpirbn.mpifr-bonn.mpg.de (Ignatios Souvatzis) Newsgroups: comp.text.tex,sub.tex,alt.sources Subject: Re: Can I add an enty to /etc/magic to make file(1) understand DVI? Message-ID: Date: 13 Sep 91 07:31:11 GMT References: <949@ltb.ltb.bso.nl> <17637@chopin.udel.edu> Sender: u502sou@mpirbn.mpifr-bonn.mpg.de Reply-To: u502sou@c1a Organization: /mnt0/u502sou/.organization Lines: 92 In-reply-to: anita@chopin.udel.edu's message of 12 Sep 91 19:56:09 GMT X-Md4-Signature: 6031b73a618f32170996477905a5d8de In article <17637@chopin.udel.edu> anita@chopin.udel.edu (Anita Marie Hoover) writes: In article <949@ltb.ltb.bso.nl> wierda@ltb.ltb.bso.nl (Gerben Wierda) writes: =>If I run file(1) on a dvi file it returns "data". I want to make it return =>"dvi". What for magic number should I add to /etc/magic? => => The following worked for us: 16 string TeX TeX dvi file The following would be the correct procedure, according to the WEB source for TeX: ---- Cut Here and unpack ---- #!/bin/sh # This is a shell archive (shar 3.32) # made 09/13/1991 14:30 UTC by souva@babsy.mpifr-bonn.mpg.de # Source directory /mnt0/u502sou # # existing files will NOT be overwritten # # This shar contains: # length mode name # ------ ---------- ------------------------------------------ # 1503 -rw-r----- append-magic # if touch 2>&1 | fgrep 'amc' > /dev/null then TOUCH=touch else TOUCH=true fi # ============= append-magic ============== if test X"$1" != X"-c" -a -f 'append-magic'; then echo "File already exists: skipping 'append-magic'" else echo "x - extracting append-magic (Text)" sed 's/^X//' << 'SHAR_EOF' > append-magic && X########################################################################## X# TeX support for the file command, to be appended to /usr/lib/file/magic, X# /etc/magic or whatever applies on your system. X# Version 1.1 (13 Sep 1991) X# X# Copyright 1991 Ignatios Souvatzis (souva@babsy.mpifr-bonn.mpg.de) X# All rights reserved. X# X# You may use this file or give it away under the conditions of the X# GNU copyleft, Version 1 or later, available from the Free Software X# Foundation, 675 Mass Ave, Campridge, MA 02139, USA X# In short, you are allowed to use, copy and distribute this file as X# long as you don't make any profit out of it (except for reasonable X# copying fees) and don't remove this notice from it. X######################################################################### X# X# LaTeX file: X# X0 string \documentstyle\\%[^}]*}\\% 1,1 LaTeX document %s X# X# .dvi file: X# X0 short 0x02f7 1,1 TeX82 .dvi file X>12 short x 1,1 , mag %d X>15 string ^\\%[\040-\0176]*\\% 1,1 :%s X0 short 0x03f7 1,1 TeX dvi-ivd file X0 short 0x04f7 1,1 Impossible! (TeX output generated after 2048) X# X# ^ ^ ^ ^ these should be TABS!!!! X# X#The line with the >12 at the beginning should be removed on Digital X#Equipment - byte sexed machines. Anyway, it works only for specified X#magnifications < 65536/1000. The last line is a joke ("2nd byte will be X#changed from 2 or 3 to 4 when an incompatible change is made to the X#.dvi format, about in 2048" (Knuth, approx. cited from tex.web 3.0). X# SHAR_EOF $TOUCH -am 0913163091 append-magic && chmod 0640 append-magic || echo "restore of append-magic failed" set `wc -c append-magic`;Wc_c=$1 if test "$Wc_c" != "1503"; then echo original size 1503, current size $Wc_c fi fi exit 0 -- Paper mail: Ignatios Souvatzis, Radioastronomisches Institut der Universitaet Bonn, Auf dem Huegel 71, D-5300 Bonn 1, FRG Internet: u502sou@mpirbn.mpifr-bonn.mpg.de souva@babsy.mpifr-bonn.mpg.de