Literature: Shells, Perl, Python

• Learning the Bash Shell by Cameron Newham and Bill Rosenblatt, O'Reilly
  
  
• UNIX Shell Programming, by Stephen G. Kochan and Patrick H. Wood, Sams
  
  
• Using Csh and Tcsh by Paul Dubois, O'Reilly
  
  
• Learning the Korn Shell by Bill Rosenblatt, Mike Loukides O'Reilly
  
  
• Learning Perl, by Randal L. Schwartz and Tom Phoenix, O'Reilly
  
  
• Programming Perl, by Larry Wall, Tom Christiansen and Jon Orwant, O'Reilly
  
  
• Beginning Perl for Bioinformatics by James D. Tisdall
  
  
• Einstieg in Python, by Thomas Theis, Galileo Computing