tailieunhanh - Unixintro- Introduction to Unix- P2

C Shell (csh) 45 • uses C-like syntax for scripting • I/O more awkward than Bourne shell • nicer for interactive use • job control • history • default prompt is % • uses ˜ symbol to indicate a home directory (user’s or others’) University Technology Services Other Shells 45 Based on the Bourne Shell: • Korn (ksh) • Bourne-Again Shell (bash) • Z Shell (zsh) Based on the C Shell: • T-C shell (tcsh) University Technology Services Built-in Shell Commands 46–47 The shells have a number of built-in commands: • executed directly by the shell • don’t have to call another program to be run • different for the. | C Shell csh 45 uses C-like syntax for scripting I O more awkward than Bourne shell nicer for interactive use job control history default prompt is uses symbol to indicate a home directory user s or others University Technology Services Other Shells 45 Based on the Bourne Shell Korn ksh Bourne-Again Shell bash Z Shell zsh Based on the C Shell T-C shell tcsh University Technology Services Built-in Shell Commands 46-47 The shells have a number of built-in commands executed directly by the shell don t have to call another program to be run different for the different shells University Technology .