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|
#! /bin/sh
#
# magic $name $command $file < $content
#
name="$1"; shift
command="$1"; shift
file="$1"; shift
bs="# begin krebs magic${name+ <$name>}"
es="# end krebs magic${name+ <$name>}"
case $1 in
(print)
echo "$bs"
cat
echo "$es"
;;
(create)
$0 has || $0 print >> $file < /dev/null
$0 replace
;;
(destroy)
if $0 has; then
cache"`cat $file`"
echo "$cache" | sed "/^$bs$/,/^$es$/d" > $file
fi
;;
(has)
grep -q "^$bs\$" $file && grep -q "^$es\$" $file
;;
(replace)
$0 destroy && $0 create
;;
(clear)
$0 replace < /dev/null
;;
(*)
echo 'Error 1: You are made of stupid!' >&2
exit 23
esac
|
