SHELLS

SHELLS

1. BOURNE SHELL (sh)

   • NO FLOAT DATATYPE
   • NO COMMAND HISTORY

2. BOURNE AGAIN SHELL (bash)

   • ADVANCED VERSION OF THE BOURNE SHELL
   • FOR .sh BOTH BOURNE AND BOURNE AGAIN CAN BE THERE
   • COMMAND COMPLETION
   • COMMAND HISTORY ON AN AVERAGE 1000 COMMANDS
   • NO FLOAT DATATYPE

3. C SHELL (csh & tcsh)

   • ONLY FOR CORE C PROGRAMMERS
   • CANNOT RUN BASH SCRIPTS

4. KORN SHELL (ksh)

   • COMPATIBLE IN WRITING .sh & bash SCRIPTS ALSO
   • SUPPORTS FLOAT POINTS