diff --git a/src/ctbin/ctbin.cpp b/src/ctbin/ctbin.cpp
index 75f2f44..aa56393 100644
--- a/src/ctbin/ctbin.cpp
+++ b/src/ctbin/ctbin.cpp
@@ -619,7 +619,6 @@ void ctbin::fill_cube(GCTAObservation* obs)
 
         // Log cube
         if (logExplicit()) {
-            log.header1("Counts cube");
             log << m_counts << std::endl;
         }
 
diff --git a/src/ctbkgcube/ctbkgcube.cpp b/src/ctbkgcube/ctbkgcube.cpp
index 6fd0cba..4c08b70 100644
--- a/src/ctbkgcube/ctbkgcube.cpp
+++ b/src/ctbkgcube/ctbkgcube.cpp
@@ -401,8 +401,8 @@ void ctbkgcube::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save background cube into file \""+m_outcube+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Background cube file");
+            log << m_outcube.url() << std::endl;
         }
 
         // Save background cube
@@ -416,8 +416,8 @@ void ctbkgcube::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save model into file \""+m_outmodel.url()+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Model definition file");
+            log << m_outmodel.url() << std::endl;
         }
 
         // Save output model for stacked analyses
@@ -451,7 +451,8 @@ void ctbkgcube::publish(const std::string& name)
 
     // Log filename
     if (logTerse()) {
-        log << "Publish \""+user_name+"\" background cube." << std::endl;
+        log << gammalib::parformat("Publish background cube");
+        log << user_name << std::endl;
     }
 
     // Publish exposure cube
diff --git a/src/ctcubemask/ctcubemask.cpp b/src/ctcubemask/ctcubemask.cpp
index 85d7658..89090ca 100644
--- a/src/ctcubemask/ctcubemask.cpp
+++ b/src/ctcubemask/ctcubemask.cpp
@@ -746,8 +746,8 @@ void ctcubemask::save_fits(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save counts cube into file \""+m_outcube+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Counts cube file");
+            log << m_outcube.url() << std::endl;
         }
 
         // Save event list
@@ -802,8 +802,8 @@ void ctcubemask::save_xml(void)
 
             // Log filename
             if (logTerse()) {
-                log << "Save counts cube into file \""+outfile+"\".";
-                log << std::endl;
+                log << gammalib::parformat("Counts cube file");
+                log << outfile << std::endl;
             }
 
             // Save event list
diff --git a/src/ctedispcube/ctedispcube.cpp b/src/ctedispcube/ctedispcube.cpp
index 728ecb0..c728729 100644
--- a/src/ctedispcube/ctedispcube.cpp
+++ b/src/ctedispcube/ctedispcube.cpp
@@ -286,8 +286,8 @@ void ctedispcube::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save energy dispersion cube into file \""+m_outcube+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Energy dispersion cube file");
+            log << m_outcube.url() << std::endl;
         }
 
         // Save energy dispersion cube
diff --git a/src/ctexpcube/ctexpcube.cpp b/src/ctexpcube/ctexpcube.cpp
index 1b88f0e..4b22314 100644
--- a/src/ctexpcube/ctexpcube.cpp
+++ b/src/ctexpcube/ctexpcube.cpp
@@ -297,8 +297,8 @@ void ctexpcube::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save exposure cube into file \""+m_outcube+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Exposure cube file");
+            log << m_outcube.url() << std::endl;
         }
 
         // Save exposure cube
@@ -332,7 +332,8 @@ void ctexpcube::publish(const std::string& name)
 
     // Log filename
     if (logTerse()) {
-        log << "Publish \""+user_name+"\" exposure cube." << std::endl;
+        log << gammalib::parformat("Publish exposure cube");
+        log << user_name << std::endl;
     }
 
     // Publish exposure cube
diff --git a/src/ctmodel/ctmodel.cpp b/src/ctmodel/ctmodel.cpp
index c5c14cc..695b77d 100644
--- a/src/ctmodel/ctmodel.cpp
+++ b/src/ctmodel/ctmodel.cpp
@@ -356,8 +356,8 @@ void ctmodel::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save model cube into file \""+m_outcube+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Model cube file");
+            log << m_outcube.url() << std::endl;
         }
 
         // Save model cube into FITS file
@@ -391,7 +391,8 @@ void ctmodel::publish(const std::string& name)
 
     // Log filename
     if (logTerse()) {
-        log << "Publish \""+user_name+"\" model cube." << std::endl;
+        log << gammalib::parformat("Publish model cube");
+        log << user_name << std::endl;
     }
 
     // Publish model cube
diff --git a/src/ctpsfcube/ctpsfcube.cpp b/src/ctpsfcube/ctpsfcube.cpp
index 3e0c664..89e3297 100644
--- a/src/ctpsfcube/ctpsfcube.cpp
+++ b/src/ctpsfcube/ctpsfcube.cpp
@@ -270,8 +270,8 @@ void ctpsfcube::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save PSF cube into file \""+m_outcube+"\".";
-            log << std::endl;
+            log << gammalib::parformat("PSF cube file");
+            log << m_outcube.url() << std::endl;
         }
 
         // Save PSF cube
diff --git a/src/ctselect/ctselect.cpp b/src/ctselect/ctselect.cpp
index 6b99fd4..6590a08 100644
--- a/src/ctselect/ctselect.cpp
+++ b/src/ctselect/ctselect.cpp
@@ -1266,8 +1266,8 @@ void ctselect::save_fits(void)
 
             // Log filename
             if (logTerse()) {
-                log << "Save event list into file \""+outfile+"\".";
-                log << std::endl;
+                log << gammalib::parformat("Event list file");
+                log << outfile << std::endl;
             }
 
             // Save event list
@@ -1335,8 +1335,8 @@ void ctselect::save_xml(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save event list into file \""+outfile+"\".";
-            log << std::endl;
+            log << gammalib::parformat("Event list file");
+            log << outfile << std::endl;
         }
 
         // Store output file name in observation
diff --git a/src/ctskymap/ctskymap.cpp b/src/ctskymap/ctskymap.cpp
index 1b6fb7f..ee54e88 100644
--- a/src/ctskymap/ctskymap.cpp
+++ b/src/ctskymap/ctskymap.cpp
@@ -322,7 +322,8 @@ void ctskymap::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save sky map into file \""+m_outmap+"\"." << std::endl;
+            log << gammalib::parformat("Sky map file");
+            log << m_outmap.url() << std::endl;
         }
 
         // Create empty FITS file
@@ -362,7 +363,8 @@ void ctskymap::publish(const std::string& name)
 
     // Log filename
     if (logTerse()) {
-        log << "Publish \""+user_name+"\" sky map." << std::endl;
+        log << gammalib::parformat("Publish sky map");
+        log << user_name << std::endl;
     }
 
     // Publish sky map
diff --git a/src/cttsmap/cttsmap.cpp b/src/cttsmap/cttsmap.cpp
index cca8a2a..27c3ff2 100644
--- a/src/cttsmap/cttsmap.cpp
+++ b/src/cttsmap/cttsmap.cpp
@@ -399,7 +399,8 @@ void cttsmap::save(void)
 
         // Log filename
         if (logTerse()) {
-            log << "Save TS map into file \""+m_outmap+"\"." << std::endl;
+            log << gammalib::parformat("TS map file");
+            log << m_outmap.url() << std::endl;
         }
 
         // Create fits file
@@ -453,7 +454,8 @@ void cttsmap::publish(const std::string& name)
 
     // Log filename
     if (logTerse()) {
-        log << "Publish \""+user_name+"\" TS map." << std::endl;
+        log << gammalib::parformat("Publish TS map");
+        log << user_name << std::endl;
     }
 
     // Publish TS map
diff --git a/test/test_ctbin.py b/test/test_ctbin.py
index 8fe5532..abc0124 100755
--- a/test/test_ctbin.py
+++ b/test/test_ctbin.py
@@ -73,7 +73,8 @@ class Test(test):
                     ' outcube="cntmap_cmd1.fits"'+\
                     ' emin=0.1 emax=100.0 enumbins=20 ebinalg="LOG"'+ \
                     ' nxpix=200 nypix=200 binsz=0.02 coordsys="CEL"'+ \
-                    ' xref=83.63 yref=22.01 proj="CAR"'
+                    ' xref=83.63 yref=22.01 proj="CAR"'+ \
+                    ' logfile="ctbin_cmd1.log" chatter=1'
 
         # Check if execution of wrong command fails
         self.test_assert(self._execute('command_that_does_not_exist') != 0,
@@ -92,7 +93,8 @@ class Test(test):
                     ' outcube="cntmap_cmd2.fits"'+\
                     ' emin=0.1 emax=100.0 enumbins=20 ebinalg="LOG"'+ \
                     ' nxpix=200 nypix=200 binsz=0.02 coordsys="CEL"'+ \
-                    ' xref=83.63 yref=22.01 proj="CAR"'
+                    ' xref=83.63 yref=22.01 proj="CAR"'+ \
+                    ' logfile="ctbin_cmd1.log" chatter=1'
 
         # Check if execution failed
         self.test_assert(self._execute(cmd) != 0,
@@ -121,8 +123,11 @@ class Test(test):
         bin['proj']     = 'CAR'
         bin['xref']     = 83.63
         bin['yref']     = 22.01
+        bin['logfile']  = 'ctbin_py1.log'
+        bin['chatter']  = 2
 
         # Run ctbin tool
+        bin.logFileOpen()   # Make sure we get a log file
         bin.run()
 
         # Check content of observation and cube
@@ -137,6 +142,8 @@ class Test(test):
         self._check_cube(cpy_bin.cube(), 5542)
 
         # Run copy of ctbin tool again
+        cpy_bin['logfile'] = 'ctbin_py2.log'
+        cpy_bin['chatter'] = 3
         cpy_bin.run()
 
         # Check content of observation and cube. We expect now an empty
@@ -177,8 +184,11 @@ class Test(test):
         bin['proj']     = 'CAR'
         bin['xref']     = 83.63
         bin['yref']     = 22.01
+        bin['logfile']  = 'ctbin_py3.log'
+        bin['chatter']  = 4
 
         # Run ctbin tool
+        bin.logFileOpen()   # Make sure we get a log file
         bin.run()
 
         # Check content of observation and cube (need multiplier=3 since
@@ -200,6 +210,8 @@ class Test(test):
         bin['proj']     = 'CAR'
         bin['xref']     = 83.63
         bin['yref']     = 22.01
+        bin['logfile']  = 'ctbin_py4.log'
+        bin['chatter']  = 4
 
         # Execute ctbin tool
         bin.execute()