Bash - How to output all (stdout & stderr) into log file in Bash

Purpose :
When scripting Bash scripts, often we'll need to output all stdout & stderr of a particular command into a log file, for logging purposes or diagnostic purposes.






Command :

&>

(Yup, that's the only 2 symbol to achieve the purpose)

Example :

• This will clear the current file (if exist) and output everything to the file :
  

  tar zcf somefile.tar.gz /etc/ &> log.file

• This will "append" the output into the file :
  

  tar zcf somefile.tar.gz /etc/ &>> log.file

  *** Do take note of the double ">>" symbol

Farvel !!!