Difference between revisions of "Object3D"

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(linux tips)
(linux tips)
Line 6: Line 6:
 
newgrp groupname
 
newgrp groupname
 
   Remark: this command will start a nested shell. If you want to use the command in a startup script like in .bashrc, to avoid infinite loop, you should put it in an "if" expression like this:  
 
   Remark: this command will start a nested shell. If you want to use the command in a startup script like in .bashrc, to avoid infinite loop, you should put it in an "if" expression like this:  
if [ `id -gn` != "object3d" ]  
+
  if [ `id -gn` != "object3d" ]  
then
+
  then
  newgrp object3d
+
    newgrp object3d
  exit
+
    exit
fi
+
  fi
  
  

Revision as of 21:33, 31 December 2008

linux tips

  • Changing Default permissions when creating a new directory

umask u=rwx,g=rwx,o=

  • set default group

newgrp groupname

 Remark: this command will start a nested shell. If you want to use the command in a startup script like in .bashrc, to avoid infinite loop, you should put it in an "if" expression like this: 
 if [ `id -gn` != "object3d" ] 
 then
   newgrp object3d
   exit
 fi


  • Change default shell:

chsh -s /bin/bash haosu


I/O Redirection: if you want to redirect both standard out and standard error, you can use: 1>out 2>&1

python tips

matlab tips

useful tools

project work flow

work flow