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-rwxr-xr-xutil/bin/magic20
1 files changed, 20 insertions, 0 deletions
diff --git a/util/bin/magic b/util/bin/magic
index d3e86120..cb9cee6e 100755
--- a/util/bin/magic
+++ b/util/bin/magic
@@ -35,13 +35,33 @@ destroy() {
echo "$cache" | sed "/^$bs$/,/^$es$/d" >$3
fi
}
+help() {
+cat <<EOF
+Usage: $0 DELIMITER_NAME FUNCTION FILE
+$0 creates,updates or destroys magic inside a file.
+It can be used to reliably add or remove custom lines.
+For example add own lines in /etc/rc.local to auto-load
+scripts.
+FUNCTION:
+ create -- creates new magic in file, takes stdin as content in magic
+ update -- updates already existing magic with text from stdin
+ destroy -- destroys magic boundary
+ retrieve -- retrieve the content of magic and writes to stdout
+
+Not yet implemented is the handling of magic not starting with the
+shell comment symbol "#".
+
+EOF
+
+}
case $2 in
(create) create "$@" ;;
(retrieve) retrieve "$@" ;;
(update) update "$@" ;;
(destroy) destroy "$@" ;;
(*)
+ help >&2
echo 'Error 1: You are made of stupid!' >&2
exit 23
esac