[Lug-bg] нахранете ме отзад (feedback) моля

[Delian Krustev <krustev@xxxxxxxxxxx>]

#!/bin/sh                                                           
# usage: $0 PAGE                                                    
#                                                                   
# Searches for manual pages for PAGE and prompts which one to display if more
# than one is found.                                                         
#                                                                            
# Could be installed as /usr/local/bin/man which will usually be found in PATH
# before the default "man" command. Another suggestion - /usr/local/bin/m .
#
# Author: Delian Krustev <krustev@xxxxxxxxxxx>
#
# Licence: This script is in the public domain.
#
# FEEDBACK:
#   - Does it interfere with something on your system when
#     installed in place (or before) the default man binary ?
#   - Any posix shell incompatibilities, nonstandard commands or command
#     options ?
#   - Optimizations, bugs, similar utilities ?

MAN=/usr/bin/man

if [ $# != 1 ]; then
  exec $MAN "$@"
fi
if ! tty > /dev/null ; then
  exec $MAN "$@"
fi

PAGES="`whereis -m $1 | cut -d : -f 2-`"

echo $PAGES | grep ' ' > /dev/null || exec $MAN "$@"

echo "This page is available in several sections:
"
# There should be a better way to sort pages.
# The "rev" stuff is ugly and errorprone - sed ?
for i in `for j in $PAGES ; do echo $j ; done | sort `; do
  printf "%10s %s\n" \
    "[`echo $i | cut -d . --output-delimiter ' ' -f 1- | rev | cut -d ' ' -f 2 | rev`]" \
    $i
done
echo "
Type a section or hit Enter for the default:"

# $MAN is smart enough to display the proper section if it has enough chars
# to make a difference. E.g. you could type "3p" for "3posix".
read section
exec $MAN $section $1
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