diff options
| -rwxr-xr-x | util/bin/magic | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/util/bin/magic b/util/bin/magic new file mode 100755 index 00000000..218c8d43 --- /dev/null +++ b/util/bin/magic @@ -0,0 +1,37 @@ +#! /bin/sh +# +# magic name command file < content +# + +bs="# begin krebs magic <$1>" +es="# end krebs magic <$1>" + +case $1 in + (print) + echo "$bs" + cat + echo "$es" + ;; + (create) + $0 $1 has $3 || $0 $1 print $3 >> $3 < /dev/null + $0 $1 replace $3 + ;; + (destroy) + if $0 $1 has $3; then + cache"`cat $3`" + echo "$cache" | sed "/^$bs$/,/^$es$/d" > $3 + fi + ;; + (has) + grep -q "^$bs\$" $3 && grep -q "^$es\$" $3 + ;; + (replace) + $0 $1 destroy $3 && $0 $1 create $3 + ;; + (clear) + $0 $1 replace $3 < /dev/null + ;; + (*) + echo 'Error 1: You are made of stupid!' >&2 + exit 23 +esac |