Re-work "list" command / output and add "search" command.

usr/local/share/bastille/tags.sh

@@ -35,9 +35,11 @@
 usage() {
     error_notify "Usage: bastille tags TARGET add tag1,tag2,..."
     error_notify "       bastille tags TARGET delete tag1,tag2,..."
+    error_notify "       bastille tags TARGET search tag"
     error_notify "       bastille tags TARGET list"
     echo -e "Example: bastille tags JAILNAME add database,mysql"
     echo -e "         bastille tags JAILNAME delete mysql"
+    echo -e "         bastille tags ALL search mysql"
     exit 1
 }
 
@@ -76,9 +78,20 @@ for _jail in ${JAILS}; do
             [ ! -s "${bastille_jail_tags}" ] && rm "${bastille_jail_tags}"
         done
         ;;
+        search)
+        [ -n "$(echo ${TAGS} | grep ,)" ] && usage # Only one tag per query
+        [ ! -f "${bastille_jail_tags}" ] && continue # skip if there is no tags file
+        grep -qE "^${TAGS}\$" "${bastille_jail_tags}"
+        if [ $? -eq 0 ]; then
+          echo "${_jail}"
+          continue
+        fi
+        ;;
         list)
-        [ -f "${bastille_jail_tags}" ] && cat "${bastille_jail_tags}"
+        if [ -f "${bastille_jail_tags}" ]; then
-        continue
+            echo -n "${_jail}: "
+            xargs < "${bastille_jail_tags}"
+        fi
         ;;
         *)
         usage