Added section on license files.

doc/erko_howto_tools.txt

@@ -14,6 +14,8 @@
 * Quartus version
 * Linux
 * ICT diensten
+* Python
+
 
 
 
@@ -511,6 +513,15 @@ Host dop421
     User hiemstra
     ProxyCommand ssh -q -A astron netcat 10.87.0.221
 
+*******************************************************************************
+* License server    
+*******************************************************************************
+
+export LM_LICENSE_FILE=1800@license4.astron.nl:1717@license5.astron.nl
+        
+ping 10.87.3.179  # = ping license4.astron.nl
+ping 10.87.3.114  # = ping license5.astron.nl
+
 
 *******************************************************************************
 * Screen to run a terminal session without ssh connection
@@ -705,6 +716,8 @@ https://linuxize.com/
 > apt-get dist-upgrade
 > apt autoremove
 
+# Login on dop386 and then power off:
+> sudo shutdown
 
 dop466 = SSD
 dop466_0 = HDD
@@ -715,7 +728,9 @@ dop466_0 = HDD
 > unzip filename.gz    # unzip file
 
 > grep -rl 'search text in files' .  # -r for recursive, -l for only list filename
+> find . -name *_thisfile.txt
 
+> scp kooistra@dop386:/home/kooistra/x.txt .
 
 Start --> Administration --> Synaptic package manager
 
@@ -799,3 +814,11 @@ Link: https://filesender.surf.nl
 Een uitgebreide beschrijving van deze diensten (Home » Diensten » ICT » Manuals and Documents)
 is te vinden op het intranet
 https://intranet.astron.nl/diensten/ict/manuals-and-documents/manuals-and-documents
+
+
+*******************************************************************************
+* Python
+*******************************************************************************
+
+pycharm
+https://pypi.org/project/black/ # Python code formatter