diff --git a/python/obitools3/apps/progress.pxd b/python/obitools3/apps/progress.pxd
index 2ecabfa..0f05967 100644
--- a/python/obitools3/apps/progress.pxd
+++ b/python/obitools3/apps/progress.pxd
@@ -51,6 +51,7 @@ cdef class ProgressBar:
     cdef int lastlog
     cdef bint ontty
     cdef int fd
+    cdef bint cut
     
     cdef bytes _head
     cdef char *chead
diff --git a/python/obitools3/apps/progress.pyx b/python/obitools3/apps/progress.pyx
index d281935..cd3baa1 100644
--- a/python/obitools3/apps/progress.pyx
+++ b/python/obitools3/apps/progress.pyx
@@ -6,11 +6,14 @@ Created on 27 mars 2016
 @author: coissac
 '''
 
+
 from ..utils cimport str2bytes, bytes2str
 from .config cimport getConfiguration 
 import sys
 
+
 cdef class ProgressBar:
+    
     cdef clock_t clock(self):
         cdef clock_t t
         cdef timeval tp
@@ -22,11 +25,14 @@ cdef class ProgressBar:
         
         return t
 
+
     def __init__(self,
                  off_t maxi,
                  dict  config={},
                  str head="",
-                 double seconde=0.1):
+                 double seconde=0.1,
+                 cut=False):
+        
         self.starttime = self.clock()
         self.lasttime  = self.starttime
         self.tickcount = <clock_t> (seconde * CLOCKS_PER_SEC)
@@ -37,17 +43,16 @@ cdef class ProgressBar:
         
         if not config:
             config=getConfiguration()
-            
         
         self.ontty = sys.stderr.isatty()
         
         if (maxi<=0):
             maxi=1
             
-        self.maxi = maxi
-        self.head = head
-        self.chead= self._head 
-        
+        self.maxi  = maxi
+        self.head  = head
+        self.chead = self._head 
+        self.cut   = cut
         
         self.logger=config[config["__root_config__"]]["logger"]
         self.wheel =  '|/-\\'
@@ -61,8 +66,9 @@ cdef class ProgressBar:
                     '##########' \
                     '##########' \
                     '##########'  
-                           
-    def __call__(self,object pos):
+                          
+             
+    def __call__(self, object pos):
         cdef off_t    ipos
         cdef clock_t  elapsed
         cdef clock_t  newtime
@@ -111,7 +117,7 @@ cdef class ProgressBar:
                 self.arrow=(self.arrow+1) % 4
             
                 if days:
-                    <void>fprintf(stderr,b'\r%s %5.1f %% |%.*s%c%.*s] remain : %d days %02d:%02d:%02d',
+                    <void>fprintf(stderr,b'\r%s %5.1f %% |%.*s%c%.*s] remain : %d days %02d:%02d:%02d\t',
                                     self.chead,
                                     percent*100,
                                     fraction,self.diese,
@@ -119,7 +125,7 @@ cdef class ProgressBar:
                                     50-fraction,self.spaces,
                                     days,hour,minu,sec)
                 else:
-                    <void>fprintf(stderr,b'\r%s %5.1f %% |%.*s%c%.*s] remain : %02d:%02d:%02d',
+                    <void>fprintf(stderr,b'\r%s %5.1f %% |%.*s%c%.*s] remain : %02d:%02d:%02d\t',
                                     self.chead,
                                     percent*100.,
                                     fraction,self.diese,
@@ -127,25 +133,25 @@ cdef class ProgressBar:
                                     50-fraction,self.spaces,
                                     hour,minu,sec)
 
-            tenth = int(percent * 10)
-            if tenth != self.lastlog:
-                
-                if self.ontty:
-                    <void>fputs(b'\n',stderr)
+            if self.cut:
+                tenth = int(percent * 10)
+                if tenth != self.lastlog:
                     
-                self.logger.info('%s %5.1f %% remain : %02d:%02d:%02d' % (
-                                        bytes2str(self._head),
-                                        percent*100.,
-                                        hour,minu,sec))
-                self.lastlog=tenth
+                    if self.ontty:
+                        <void>fputs(b'\n',stderr)
+                    
+                    self.logger.info('%s %5.1f %% remain : %02d:%02d:%02d' % (
+                                            bytes2str(self._head),
+                                            percent*100.,
+                                            hour,minu,sec))
+                    self.lastlog=tenth
         else:
             self.cycle+=1
 
-    property head:
-    
+
+    property head:    
         def __get__(self):
             return self._head
-        
         def __set__(self,str value):
             self._head=str2bytes(value)
             self.chead=self._head