diff --git a/include/struc.hpp b/include/struc.hpp
index 902d845..72d1480 100644
--- a/include/struc.hpp
+++ b/include/struc.hpp
@@ -119,7 +119,7 @@ public:
 
   // case
   arg carg;
-  std::vector< std::pair<arg, list_t> > cases;
+  std::vector< std::pair<std::vector<arg>, list_t> > cases;
 
   // main: shebang
   // function: name
diff --git a/src/generate.cpp b/src/generate.cpp
index 1329db4..40f6542 100644
--- a/src/generate.cpp
+++ b/src/generate.cpp
@@ -274,7 +274,10 @@ std::string block::generate_case(int ind)
   {
     // case definition : foo)
     if(!opt_minimize) ret += INDENT;
-    ret += cs.first.generate(ind) + ')';
+    for(auto it: cs.first)
+      ret += it.generate(ind) + '|';
+    ret.pop_back();
+    ret += ')';
     if(!opt_minimize) ret += '\n';
     // commands
     for(auto it: cs.second)
diff --git a/src/main.cpp b/src/main.cpp
index cb83856..241ed04 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -117,10 +117,18 @@ int main(int argc, char* argv[])
     {
       return execute(sh, args);
     }
-    else if(options['o'])
+    else if(options['c'])
     {
       std::cout << sh.generate();
     }
+    else if(options['o'])
+    {
+      std::string destfile=options['o'];
+      if(destfile == "-")
+        destfile = "/dev/stdout";
+      std::ofstream(destfile) << sh.generate();
+      ztd::exec("chmod", "+x", destfile);
+    }
     else
     {
       if(binshebang == curbin)
diff --git a/src/options.cpp b/src/options.cpp
index a48e218..a99e685 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -10,7 +10,8 @@ ztd::option_set gen_options()
   ret.add(ztd::option('h', "help",     false, "Display this help message"));
   ret.add(ztd::option('m', "minimize", false, "Minimize code"));
   ret.add(ztd::option('e', "exec",     false, "Directly execute script"));
-  ret.add(ztd::option('o', "output",   false, "Output result script to stdout"));
+  ret.add(ztd::option('o', "output",   true , "Output result script to file", "file"));
+  ret.add(ztd::option('c', "stdout",   false, "Output result script to stdout"));
   ret.add(ztd::option("help-commands", false, "Print help for linker commands"));
   return ret;
 }
@@ -43,7 +44,8 @@ ztd::option_set create_resolve_opts()
 void print_help(const char* arg0)
 {
   printf("%s [options] <file> [arg...]\n", arg0);
-  printf("Link extended shell, allows file including and command resolving\n");
+  printf("Link extended shell\n");
+  printf("Allows file including and command resolving\n");
   printf("See --help-commands for help on linker commands\n");
   printf("\n");
   printf("Options:\n");
diff --git a/src/parse.cpp b/src/parse.cpp
index fc8c7e1..c9d1bff 100644
--- a/src/parse.cpp
+++ b/src/parse.cpp
@@ -110,7 +110,7 @@ std::pair<arg, uint32_t> parse_arg(const char* in, uint32_t size, uint32_t start
   if(is_in(in[i], "&|;\n#()"))
     throw ztd::format_error( strf("Unexpected token '%c'", in[i]) , g_origin, in, i);
 
-  while(i<size && !is_in(in[i], " \t|&;\n()"))
+  while(i<size && !is_in(in[i], " \t&|;\n#()"))
   {
     if(i+1<size && is_in(in[i], "<>") && in[i+1]=='&') // special case for <& and >&
     {
@@ -422,15 +422,22 @@ std::pair<block, uint32_t> parse_case(const char* in, uint32_t size, uint32_t st
   while(i<size && !word_eq("esac", in, size, i, " \t\n;()&") )
   {
     // toto)
-    std::pair<arg, list_t> cc;
-    pa = parse_arg(in, size, i);
-    if(pa.first.raw == "")
-      throw ztd::format_error("Empty case value", g_origin, in, i);
-    cc.first = pa.first;
-    i=skip_unread(in, size, pa.second);
-
-    if(in[i] != ')')
-      throw ztd::format_error( strf("Unexpected token '%c', expecting ')'", in[i]), g_origin, in, i );
+    std::pair<std::vector<arg>, list_t> cc;
+    while(true)
+    {
+      pa = parse_arg(in, size, i);
+      if(pa.first.raw == "")
+        throw ztd::format_error("Empty case value", g_origin, in, i);
+      cc.first.push_back(pa.first);
+      i=skip_unread(in, size, pa.second);
+      if(i>=size )
+        throw ztd::format_error("Unexpected end of file. Expecting 'esac'", g_origin, in, i);
+      if(is_in(in[i], "&;\n#("))
+        throw ztd::format_error( strf("Unexpected token '%c', expecting ')'", in[i]), g_origin, in, i );
+      if(in[i] == ')')
+        break;
+      i=skip_unread(in, size, i+1);
+    }
     i++;
 
     while(true) // blocks