Added - and _ to the allowed alias name whitelist.

aliaser

@@ -1,18 +1,18 @@
 #!/bin/bash
 
-version="1.3.1"
+version="1.3.2"
 
 function print_version {
   echo $version
 }
 
 function print_add_usage {
-  echo "usage: aliaser add <alias> <command>"
+  echo "usage: aliaser add <alias_name> <command>"
   echo "      The alias name must not contain any spaces"
 }
 
 function print_remove_usage {
-  echo "usage: aliaser rm <alias>"
+  echo "usage: aliaser rm <alias_name>"
   echo "      The alias name must not contain any spaces"
 }
 
@@ -25,11 +25,11 @@ function print_help {
   echo "      ls"
   echo "            Lists all aliases saved in the aliases file, in alphabetical order"
   echo 
-  echo "      add <alias> <command>"
+  echo "      add <alias_name> <command>"
   echo "            Creates/replaces an alias for the specified command in the aliases file"
-  echo "            The alias name must not contain any spaces, and can only consist of alphanumeric characters"
+  echo "            The alias name must not contain any spaces, and can only consist of the following characters: a-z A-Z 0-9 _ -"
   echo
-  echo "      rm <alias>"
+  echo "      rm <alias_name>"
   echo "            Removes the alias permanently from the aliases file"
   echo "            The alias name must not contain any spaces"
   echo
@@ -52,8 +52,8 @@ function list_aliases {
 }
 
 function add_alias {
-  if [[ $alias =~ [^0-9A-Za-z]+ ]]; then
-    echo "Alias name can only contain alphanumeric characters"
+  if [[ $alias =~ [^0-9A-Za-z_-]+ ]]; then
+    echo "Alias name can only contain the following characters: a-z A-Z 0-9 _ -"
     exit 1
   fi
   count=`grep -o "^alias $alias=" $alias_file | wc -l`