home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam  


UNIX in a Nutshell: System V Edition

UNIX in a Nutshell: System V EditionSearch this book
Previous: Reference: telnet Chapter 2
UNIX Commands
Next: Reference: time
 

test



test

 

expression


or


[

 

expression

 

]

Evaluate an expression and, if its value is true, return a zero exit status; otherwise, return a nonzero exit status. In shell scripts, you can use the alternate form [ expression ] . This command is generally used with conditional constructs in shell programs. See Section 4 for more information on test .


Previous: Reference: telnet UNIX in a Nutshell: System V Edition Next: Reference: time
Reference: telnet Book Index Reference: time

The UNIX CD Bookshelf Navigation The UNIX CD BookshelfUNIX Power ToolsUNIX in a NutshellLearning the vi Editorsed & awkLearning the Korn ShellLearning the UNIX Operating System