Appendix A. Contributed Scripts

#!/bin/bash

# Formats the source of a man page for viewing in a user directory.
# This is useful when writing man page source and you want to
# look at the intermediate results on the fly while working on it.

if [ -z $1 ]
then
  echo "Usage: `basename $0` [filename]"
    exit 1
fi

groff -Tascii -man $1 | less
# From the man page for groff.

exit 0

#!/bin/bash

# Example 3-71 modified to use encrypted password.

if [ -z $1 ]
then
  echo "Usage: `basename $0` filename"
  exit 1
fi  

Username=bozo
# Change to suit.

Filename=`basename $1`
# Strips pathname out of file name

Server="XXX"
Directory="YYY"
# Change above to actual server name & directory.


password=`cruft <pword`
# "pword" is the file containing encrypted password.
# Uses the author's own "cruft" file encryption package,
# based on onetime pad algorithm,
# and obtainable from:
# Primary-site:   ftp://metalab.unc.edu /pub/Linux/utils/file
#                 cruft-0.2.tar.gz [16k]


ftp -n $Server <<End-Of-Session
# -n option disables auto-logon

user $Username $Password
binary
bell
# Ring 'bell' after each file transfer
cd $Directory
put $Filename
bye
End-Of-Session

exit 0

#! /bin/sh
# Strips off the header from a mail/News message i.e. till the first
# empty line
# Mark Moraes, University of Toronto

# --> These comments added by author of HOWTO.

if [ $# -eq 0 ]; then
# --> If no command line args present, then works on file redirected to stdin.
	sed -e '1,/^$/d' -e '/^[ 	]*$/d'
	# --> Delete empty lines and all lines until 
	# --> first one beginning with white space.
else
# --> If command line args present, then work on files named.
	for i do
		sed -e '1,/^$/d' -e '/^[ 	]*$/d' $i
		# --> Ditto, as above.
	done
fi

# --> Exercise for the reader: Add error checking and other options.
# -->
# --> Note that the small sed script repeats, except for the arg passed.
# --> Does it make sense to embed it in a function? Why or why not?

#! /bin/sh 
# $Id: ftpget,v 1.2 91/05/07 21:15:43 moraes Exp $ 
# Script to perform batch anonymous ftp. Essentially converts a list of
# of command line arguments into input to ftp.
# Simple, and quick - written as a companion to ftplist 
# -h specifies the remote host (default prep.ai.mit.edu) 
# -d specifies the remote directory to cd to - you can provide a sequence 
# of -d options - they will be cd'ed to in turn. If the paths are relative, 
# make sure you get the sequence right. Be careful with relative paths - 
# there are far too many symlinks nowadays.  
# (default is the ftp login directory)
# -v turns on the verbose option of ftp, and shows all responses from the 
# ftp server.  
# -f remotefile[:localfile] gets the remote file into localfile 
# -m pattern does an mget with the specified pattern. Remember to quote 
# shell characters.  
# -c does a local cd to the specified directory
# For example, 
# 	ftpget -h expo.lcs.mit.edu -d contrib -f xplaces.shar:xplaces.sh \
#		-d ../pub/R3/fixes -c ~/fixes -m 'fix*' 
# will get xplaces.shar from ~ftp/contrib on expo.lcs.mit.edu, and put it in
# xplaces.sh in the current working directory, and get all fixes from
# ~ftp/pub/R3/fixes and put them in the ~/fixes directory. 
# Obviously, the sequence of the options is important, since the equivalent
# commands are executed by ftp in corresponding order
#
# Mark Moraes (moraes@csri.toronto.edu), Feb 1, 1989 
# --> Angle brackets changed to parens, so Docbook won't get indigestion.
#


# --> These comments added by author of HOWTO.

# PATH=/local/bin:/usr/ucb:/usr/bin:/bin
# export PATH
# --> Above 2 lines from original script probably superfluous.

TMPFILE=/tmp/ftp.$$
# --> Creates temp file, using process id of script ($$)
# --> to construct filename.

SITE=`domainname`.toronto.edu
# --> 'domainname' similar to 'hostname'
# --> May rewrite this to parameterize this for general use.

usage="Usage: $0 [-h remotehost] [-d remotedirectory]... [-f remfile:localfile]... \
		[-c localdirectory] [-m filepattern] [-v]"
ftpflags="-i -n"
verbflag=
set -f 		# So we can use globbing in -m
set x `getopt vh:d:c:m:f: $*`
if [ $? != 0 ]; then
	echo $usage
	exit 1
fi
shift
trap 'rm -f ${TMPFILE} ; exit' 0 1 2 3 15
echo "user anonymous ${USER-gnu}@${SITE} > ${TMPFILE}"
# --> Added quotes (recommended in complex echoes).
echo binary >> ${TMPFILE}
for i in $*
# --> Parse command line args.
do
	case $i in
	-v) verbflag=-v; echo hash >> ${TMPFILE}; shift;;
	-h) remhost=$2; shift 2;;
	-d) echo cd $2 >> ${TMPFILE}; 
	    if [ x${verbflag} != x ]; then
	        echo pwd >> ${TMPFILE};
	    fi;
	    shift 2;;
	-c) echo lcd $2 >> ${TMPFILE}; shift 2;;
	-m) echo mget "$2" >> ${TMPFILE}; shift 2;;
	-f) f1=`expr "$2" : "\([^:]*\).*"`; f2=`expr "$2" : "[^:]*:\(.*\)"`;
	    echo get ${f1} ${f2} >> ${TMPFILE}; shift 2;;
	--) shift; break;;
	esac
done
if [ $# -ne 0 ]; then
	echo $usage
	exit 2
fi
if [ x${verbflag} != x ]; then
	ftpflags="${ftpflags} -v"
fi
if [ x${remhost} = x ]; then
	remhost=prep.ai.mit.edu
	# --> Rewrite to match your favorite ftp site.
fi
echo quit >> ${TMPFILE}
# --> All commands saved in tempfile.

ftp ${ftpflags} ${remhost} < ${TMPFILE}
# --> Now, tempfile batch processed by ftp.

rm -f ${TMPFILE}
# --> Finally, tempfile deleted (you may wish to copy it to a logfile).


# --> Exercises for reader:
# --> 1) Add error checking.
# --> 2) Add bells & whistles.