diff --git a/include/NEMO.h b/include/NEMO.h
index bcacbfa..273ed26 100644
--- a/include/NEMO.h
+++ b/include/NEMO.h
@@ -19,12 +19,20 @@ using michlib::ToGeoDomainNeg;
 
 class NEMOData
 {
+ enum Type
+ {
+  TYPE_UNKNOWN,
+  TYPE_DT,
+  TYPE_NRT,
+  TYPE_NRT6
+ };
+
  NCFileA                nc, nct, ncs;
  size_t                 xb, yb, xe, ye, layer;
  std::vector<real>      depths;
  std::vector<MDateTime> times;
  size_t                 nx;
- MString                title;
+ Type                   type = TYPE_UNKNOWN;
 
  class EnvVar
  {
@@ -135,26 +143,26 @@ class NEMOData
  NEMOData() = default;
 
  // TODO: RetVal
- bool Open(const MString& type, const MString& cred, const MString& proxyurl = "")
+ bool Open(const MString& stype, const MString& cred, const MString& proxyurl = "")
  {
   if(proxyurl.Exist()) proxy.Activate("all_proxy", proxyurl);
   MString url, urlt, urls;
-  if(type == "DT")
+  if(stype == "DT")
   {
-   url   = "https://" + cred + "@my.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy_my_0.083_P1D-m";
-   title = "NEMO Delayed time, daily mean";
+   url  = "https://" + cred + "@my.cmems-du.eu/thredds/dodsC/cmems_mod_glo_phy_my_0.083_P1D-m";
+   type = TYPE_DT;
   }
-  if(type == "NRT")
+  if(stype == "NRT")
   {
-   url   = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024";
-   title = "NEMO Near-real time, daily mean";
+   url  = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024";
+   type = TYPE_NRT;
   }
-  if(type == "NRT6")
+  if(stype == "NRT6")
   {
-   url   = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024-3dinst-uovo";
-   urlt  = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024-3dinst-thetao";
-   urls  = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024-3dinst-so";
-   title = "NEMO Near-real time, 6h resolution";
+   url  = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024-3dinst-uovo";
+   urlt = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024-3dinst-thetao";
+   urls = "https://" + cred + "@nrt.cmems-du.eu/thredds/dodsC/global-analysis-forecast-phy-001-024-3dinst-so";
+   type = TYPE_NRT6;
   }
   nc.Reset(url);
   if(!nc) return false;
@@ -223,7 +231,7 @@ class NEMOData
 
   // clang-format off
   return
-   "NEMO dataset title: " + Title() + "\n" +
+   "Dataset: " + Title() + "\n" +
    " Begin date: " + Time(0).ToString() + "\n" +
    " End date: " + Time(NTimes()-1).ToString() + "\n" +
    " Time step: " + Timestep() + " seconds\n" +
@@ -232,6 +240,17 @@ class NEMOData
   // clang-format on
  }
 
+ MString Dump() const
+ {
+  // clang-format off
+  return
+   "Current settings:\n" + MString() +
+   " Longitudes: from " + Lonb() + " (" + xb + ") to "+ Lone() + " (" + xe + ")\n" +
+   " Latitudes: from " + Latb() + " (" + yb + ") to "+ Late() + " (" + ye + ")\n" +
+   " Depth: layer " + layer + ", depth " + Depth() + " m\n";
+  // clang-format on
+ }
+
  bool SetRegion(real lonbin, real lonein, real latb, real late, real depth)
  {
   if(!nc) return false;
@@ -287,6 +306,9 @@ class NEMOData
   return times[i];
  }
 
+ bool     isOk() const { return nc; }
+ explicit operator bool() const { return nc; }
+
  size_t NDepths() const { return depths.size(); }
  size_t NTimes() const { return times.size(); }
 
@@ -294,7 +316,16 @@ class NEMOData
 
  template<vartype::Vartype vt> Data Read(const std::vector<size_t>& tindex) const = delete;
 
- MString Title() const { return title; }
+ MString Title() const
+ {
+  switch(type)
+  {
+  case(TYPE_DT): return "NEMO Delayed time, daily mean (DT)";
+  case(TYPE_NRT): return "NEMO Near-real time, daily mean (NRT)";
+  case(TYPE_NRT6): return "NEMO Near-real time, 6h resolution (NRT6)";
+  default: return "No title";
+  }
+ }
 
  static real Fillval() { return Data::Fillval(); }
 };
diff --git a/include/odm.h b/include/odm.h
index a8c1ef2..bdd2d01 100644
--- a/include/odm.h
+++ b/include/odm.h
@@ -1,4 +1,5 @@
 #include "BFileW.h"
+#include "GPL.h"
 #include "NEMO.h"
 #include "tindexes.h"
 
@@ -42,6 +43,11 @@ class Data: public DataVariants
   return std::visit(
       [](const auto& arg) -> auto{ return arg.NTimes(); }, *this);
  }
+ auto Info() const
+ {
+  return std::visit(
+      [](const auto& arg) -> auto{ return arg.Info(); }, *this);
+ }
 
  bool Write(BFileW& fw, VarType vt, const std::vector<size_t>& tindexes) const
  {
@@ -67,4 +73,20 @@ class Data: public DataVariants
 
 CLArgs ParseArgs(int argc, char** argv);
 
+int actioninfo(const CLArgs& args);
+int actiontsc(const CLArgs& args);
+
+inline NEMOData NEMOOpen(const CLArgs& args)
+{
+ NEMOData ndata;
+
+ MString oldprefix = GPL.UsePrefix("AVISO");
+ MString dataset   = args.contains("dataset") ? args.at("dataset") : "DT";
+ MString cred      = GPL.ParameterSValue("COPERNICUS_USER", "");
+ MString proxy     = GPL.ParameterSValue("COPERNICUS_PROXY", "");
+
+ GPL.UsePrefix(oldprefix);
+ ndata.Open(dataset, cred, proxy);
+ return ndata;
+}
 #endif
diff --git a/src/actioninfo.cpp b/src/actioninfo.cpp
new file mode 100644
index 0000000..f121fde
--- /dev/null
+++ b/src/actioninfo.cpp
@@ -0,0 +1,36 @@
+#define MICHLIB_NOSOURCE
+#include "GPL.h"
+#include "odm.h"
+
+int actioninfo(const CLArgs& args)
+{
+ if(!args.contains("source"))
+ {
+  errmessage("No source specified!");
+  return 1;
+ }
+
+ Data data;
+
+ if(args.at("source") == "NEMO")
+ {
+  NEMOData ndata = NEMOOpen(args);
+
+  if(!ndata)
+  {
+   errmessage("Can't open NEMO dataset");
+   return 1;
+  }
+
+  data = DataVariants(std::move(ndata));
+ }
+ else
+ {
+  errmessage("Unknown source " + args.at("source"));
+  return 1;
+ }
+
+ message(data.Info());
+
+ return 0;
+}
diff --git a/src/actiontsc.cpp b/src/actiontsc.cpp
new file mode 100644
index 0000000..2ca7364
--- /dev/null
+++ b/src/actiontsc.cpp
@@ -0,0 +1,133 @@
+#define MICHLIB_NOSOURCE
+#include "GPL.h"
+#include "odm.h"
+
+int actiontsc(const CLArgs& args)
+{
+ if(!args.contains("source"))
+ {
+  errmessage("No source specified!");
+  return 1;
+ }
+
+ VarType vtype(args.at("var"));
+ if(!vtype)
+ {
+  errmessage("Incorrect or no variable specified");
+  return 1;
+ }
+
+ michlib_internal::ParameterListEx pars;
+ pars.UsePrefix("");
+
+ pars.SetParameter("source", args.at("source"));
+ pars.SetParameter("variable", vtype.Name());
+
+ Data data;
+
+ if(args.at("source") == "NEMO")
+ {
+  if(!vtype.isSupported<NEMOData>())
+  {
+   errmessage("Variable " + args.at("var") + " is unsupported by NEMO");
+   return 1;
+  }
+
+  NEMOData ndata = NEMOOpen(args);
+  if(!ndata)
+  {
+   errmessage("Can't open NEMO dataset");
+   return 1;
+  }
+
+  size_t layer = 0;
+  if(args.contains("layer")) layer = args.at("layer").ToInteger<size_t>();
+  if(!args.contains("depth") && layer >= ndata.NDepths())
+  {
+   errmessage(MString("Layer ") + layer + " is too deep!");
+   return 1;
+  }
+  real depth = args.contains("depth") ? args.at("depth").ToReal() : ndata.Depth(layer);
+
+  if(!(args.contains("lonb") && args.contains("lone") && args.contains("latb") && args.contains("late")))
+  {
+   errmessage("Region not specified (lonb, lone, latb, late)");
+   return 1;
+  }
+  if(!ndata.SetRegion(args.at("lonb").ToReal(), args.at("lone").ToReal(), args.at("latb").ToReal(), args.at("late").ToReal(), depth))
+  {
+   errmessage("Can't set region");
+   return 1;
+  }
+
+  pars.SetParameter("depth", depth);
+  pars.SetParameter("layer", ndata.Layer());
+  pars.SetParameter("dataset", ndata.Title());
+  pars.SetParameter("lonb", args.at("lonb").ToReal());
+  pars.SetParameter("latb", args.at("latb").ToReal());
+  pars.SetParameter("lone", args.at("lone").ToReal());
+  pars.SetParameter("late", args.at("late").ToReal());
+
+  data = DataVariants(std::move(ndata));
+ }
+ else
+ {
+  errmessage("Unknown source " + args.at("source"));
+  return 1;
+ }
+
+ if(args.contains("time") && (args.contains("timeb") || args.contains("timee")))
+ {
+  errmessage("Time must be set via time parameter or timeb and timee parameter but not via both");
+  return 1;
+ }
+
+ if(!(args.contains("time") || (args.contains("timeb") && args.contains("timee"))))
+ {
+  errmessage("Time must be set via time parameter or timeb and timee parameter");
+  return 1;
+ }
+
+ BFileW  fw;
+ MString name = args.at("out");
+ if(!name.Exist()) name = "out.bin";
+
+ fw.Create(name, 3);
+ /*
+ if(!fw.Create(name,3))
+ {
+  errmessage("Can't create file "+name);
+  return 1;
+ }
+ */
+ fw.SetParameters(pars);
+ fw.UsePrefix("");
+
+ if(args.contains("time"))
+ {
+  MDateTime time;
+  if(time.FromString(args.at("time"))) // One date
+  {
+   auto it = GetTIndex(data, time);
+   fw.SetParameter("time", data.Time(it).ToString());
+   data.Write(fw, vtype, std::vector<size_t>(1, it));
+  }
+  else // Regular expression
+  {
+   fw.SetParameter("timeregex", args.at("time"));
+   data.Write(fw, vtype, GetTIndexes(data, args.at("time")));
+  }
+ }
+ else // Bdate, edate
+ {
+  MDateTime tb(args.at("timeb")), te(args.at("timee"));
+  fw.SetParameter("timeb", tb.ToString());
+  fw.SetParameter("timee", te.ToString());
+  data.Write(fw, vtype, GetTIndexes(data, tb, te));
+ }
+
+ fw.Finalize();
+ fw.Close();
+
+ return 0;
+}
diff --git a/src/odm.cpp b/src/odm.cpp
index b32f3d6..d6e31ec 100644
--- a/src/odm.cpp
+++ b/src/odm.cpp
@@ -1,22 +1,25 @@
 #include "odm.h"
-#include "GPL.h"
 
 inline void Usage(const MString& arg0)
 {
  message(arg0 + " (<key>=<value>...)");
  message("Keys are:");
- message(" source. Required. May be: NEMO");
- message(" var. Required. May be: temp, sal or chl");
- message(" time. Time moment or regular expression. If present, timeb and timee must be absent");
- message(" timeb, timee. Time interval. If present, time must be absent");
- message(" out. Output file. Default: out.bin");
- message(" Keys for source=NEMO");
- message("  var can be only temp or sal");
- message("  dataset. Can be DT, NRT or NRT6. Default: DT");
- message("  cred. Login and password for COPERNICUS site. Default works");
- message("  proxy. Proxy for access to COPERNICUS. Default works");
- message("  layer and/or depth. Layer or depth of NEMO dataset. If depth is specified, layer is ignored. Default: layer=0");
- message("  lonb, lone, latb, late. Required. Region of interest");
+ message(" action. What the program should do. May be: info, tsc. Default: tsc.");
+ message(" Keys for action=info. Print some information about dataset.");
+ message("  source. Required. May be: NEMO");
+ message("  Keys for source=NEMO");
+ message("   dataset. Can be DT, NRT or NRT6. Default: DT");
+ message(" Keys for action=tsc. Get temperature, salinity, chlorofill from dataset.");
+ message("  source. Required. May be: NEMO");
+ message("  var. Required. May be: temp, sal or chl");
+ message("  time. Time moment or regular expression. If present, timeb and timee must be absent");
+ message("  timeb, timee. Time interval. If present, time must be absent");
+ message("  out. Output file. Default: out.bin");
+ message("  Keys for source=NEMO");
+ message("   var can be only temp or sal");
+ message("   dataset. Can be DT, NRT or NRT6. Default: DT");
+ message("   layer and/or depth. Layer or depth of NEMO dataset. If depth is specified, layer is ignored. Default: layer=0");
+ message("   lonb, lone, latb, late. Required. Region of interest");
 }
 
 int main(int argc, char** argv)
@@ -28,137 +31,18 @@ int main(int argc, char** argv)
  }
  auto args = ParseArgs(argc, argv);
 
- if(!args.contains("source"))
- {
-  errmessage("No source specified!");
-  return 1;
- }
-
- VarType vtype(args["var"]);
- if(!vtype)
- {
-  errmessage("Incorrect or no variable specified");
-  return 1;
- }
-
- michlib_internal::ParameterListEx pars;
- pars.UsePrefix("");
-
- pars.SetParameter("source", args["source"]);
- pars.SetParameter("variable", vtype.Name());
-
- Data data;
+ MString action = args.contains("action") ? args["action"] : "tsc";
 
- if(args["source"] == "NEMO")
- {
-  if(!vtype.isSupported<NEMOData>())
-  {
-   errmessage("Variable " + args["var"] + " is unsupported by NEMO");
-   return 1;
-  }
-
-  GPL.UsePrefix("AVISO");
-  NEMOData ndata;
-  MString  dataset = args["dataset"];
-  if(!dataset.Exist()) dataset = "DT";
-
-  MString cred  = GPL.ParameterSValue("COPERNICUS_USER", "");
-  MString proxy = GPL.ParameterSValue("COPERNICUS_PROXY", "");
-
-  if(!ndata.Open(dataset, cred, proxy))
-  {
-   errmessage("Can't open NEMO dataset");
-   return 1;
-  }
-
-  size_t layer = 0;
-  if(args.contains("layer")) layer = args["layer"].ToInteger<size_t>();
-  if(!args.contains("depth") && layer >= ndata.NDepths())
-  {
-   errmessage(MString("Layer ") + layer + " is too deep!");
-   return 1;
-  }
-  real depth = args.contains("depth") ? args["depth"].ToReal() : ndata.Depth(layer);
-
-  if(!(args.contains("lonb") && args.contains("lone") && args.contains("latb") && args.contains("late")))
-  {
-   errmessage("Region not specified (lonb, lone, latb, late)");
-   return 1;
-  }
-  if(!ndata.SetRegion(args["lonb"].ToReal(), args["lone"].ToReal(), args["latb"].ToReal(), args["late"].ToReal(), depth))
-  {
-   errmessage("Can't set region");
-   return 1;
-  }
-
-  pars.SetParameter("depth", depth);
-  pars.SetParameter("layer", ndata.Layer());
-  pars.SetParameter("dataset", dataset);
-  pars.SetParameter("lonb", args["lonb"].ToReal());
-  pars.SetParameter("latb", args["latb"].ToReal());
-  pars.SetParameter("lone", args["lone"].ToReal());
-  pars.SetParameter("late", args["late"].ToReal());
-
-  data = DataVariants(std::move(ndata));
- }
+ int ret = 1;
+ if(action == "info")
+  ret = actioninfo(args);
+ else if(action == "tsc")
+  ret = actiontsc(args);
  else
  {
-  errmessage("Unknown source " + args["source"]);
+  errmessage("Unknown action " + action);
   return 1;
  }
 
- if(args.contains("time") && (args.contains("timeb") || args.contains("timee")))
- {
-  errmessage("Time must be set via time parameter or timeb and timee parameter but not via both");
-  return 1;
- }
-
- if(!(args.contains("time") || (args.contains("timeb") && args.contains("timee"))))
- {
-  errmessage("Time must be set via time parameter or timeb and timee parameter");
-  return 1;
- }
-
- BFileW  fw;
- MString name = args["out"];
- if(!name.Exist()) name = "out.bin";
-
- fw.Create(name, 3);
- /*
- if(!fw.Create(name,3))
- {
-  errmessage("Can't create file "+name);
-  return 1;
- }
- */
- fw.SetParameters(pars);
- fw.UsePrefix("");
-
- if(args.contains("time"))
- {
-  MDateTime time;
-  if(time.FromString(args["time"])) // One date
-  {
-   auto it = GetTIndex(data, time);
-   fw.SetParameter("time", data.Time(it).ToString());
-   data.Write(fw, vtype, std::vector<size_t>(1, it));
-  }
-  else // Regular expression
-  {
-   fw.SetParameter("timeregex", args["time"]);
-   data.Write(fw, vtype, GetTIndexes(data, args["time"]));
-  }
- }
- else // Bdate, edate
- {
-  MDateTime tb(args["timeb"]), te(args["timee"]);
-  fw.SetParameter("timeb", tb.ToString());
-  fw.SetParameter("timee", te.ToString());
-  data.Write(fw, vtype, GetTIndexes(data, tb, te));
- }
-
- fw.Finalize();
- fw.Close();
-
- return 0;
+ return ret;
 }