diff --git a/.bashrc b/.bashrc
index c28961f..5743407 100644
--- a/.bashrc
+++ b/.bashrc
@@ -139,11 +139,14 @@ gitpush() {
 }
 
 swp() {
-  if [ "$1"="-h" ]; then
+  myhelp() {
     echo 'This tool is usefull to remove .swp files'
     echo 'Usage: swp [-d dir] [-noi]'
     echo 'if you do not specify the directory in -d param, search starts from the current'
     echo 'if you do not specify the -noi param files removing is interactive'
+  }
+  if [ "$1" == '-h' ]; then
+    myhelp
     return 1
   fi
   cpath=.
@@ -166,12 +169,15 @@ swp() {
 }
 
 purgefext() {
-  if [ "$1"="-h" ]; then
+  myhelp() {
     echo 'This tool is usefull to remove specific files type'
     echo 'Usage: purgefext -e ext [-d dir] [-noi]'
     echo 'the e param is mandatory: is the files extension you want to remove'
     echo 'if you do not specify the directory in -d param, search starts from the current'
     echo 'if you do not specify the -noi param files removing is interactive'
+  }
+  if [ "$1" == '-h' ]; then
+    myhelp
     return 1
   fi
   cpath=.
@@ -192,6 +198,11 @@ purgefext() {
     esac
     shift #shift params
   done
+  
+  if [ "$ext" == '' ]; then 
+    myhelp
+    return 1
+  fi
 
   find $cpath -name "*."$ext -exec rm $interactive {} \; 
 }