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System Administration Guide

Shell Features

Table 1-11 lists basic shell features that each shell provides, which can help you determine what you can and can't do when creating user initialization files for each shell.

Table 1-11 Basic Features of Bourne, C, and Korn Shells

Feature 

Bourne 

C 

Korn 

Known as the standard shell in UNIX 

Yes 

No 

No 

Compatible syntax with Bourne shell 

- 

No 

Yes 

Job control 

Yes 

Yes 

Yes 

History list 

No 

Yes 

Yes 

Command-line editing 

No 

Yes 

Yes 

Aliases 

No 

Yes 

Yes 

Single-character abbreviation for login directory 

No 

Yes 

Yes 

Protection from overwriting (noclobber)

No 

Yes 

Yes 

Setting to ignore Control-d (ignoreeof)

No 

Yes 

Yes 

Enhanced cd

No 

Yes 

Yes 

Initialization file separate from .profile

No 

Yes 

Yes 

Logout file 

No 

Yes 

No