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Top Forums UNIX for Dummies Questions & Answers Differences in BASH and ASH shells regarding if command? Post 302452982 by Scrutinizer on Monday 13th of September 2010 05:33:49 PM
Old 09-13-2010
This may give you a good idea of what can be used in ash:
Posix Shell & Utilities
Specifically about your question:
If Conditional Construct and test - evaluate expression ( [expression] )
Case Conditional Construct and Pattern Matching Notation
 

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cd(1T)							       Tcl Built-In Commands							    cd(1T)

__________________________________________________________________________________________________________________________________________________

NAME
cd - Change working directory SYNOPSIS
cd ?dirName? _________________________________________________________________ DESCRIPTION
Change the current working directory to dirName, or to the home directory (as specified in the HOME environment variable) if dirName is not given. Returns an empty string. Note that the current working directory is a per-process resource; the cd command changes the working directory for all interpreters and (in a threaded environment) all threads. EXAMPLES
Change to the home directory of the user fred: cd ~fred Change to the directory lib that is a sibling directory of the current one: cd ../lib SEE ALSO
filename(1T), glob(1T), pwd(1T) KEYWORDS
working directory ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+ NOTES
Source for Tcl is available on http://opensolaris.org. Tcl cd(1T)
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