12-12-2003
IMO it is not a good taste to make such kind of aliases (dir -> ls -l etc.)
If you change to another Unix system without these aliases and you are used to rely on these aliases you will then have difficulties.
The point of creating aliases is to reduce amount of typing for frequently-used commands, not to make different OSes look similar because different OSes have different characteristics and making an alias is not sufficient to mask the differences in terms of commands.
It's easy to visualize. DOS commands use a / for arguments while - for Unix, and the arguments for "dir" are also different from that of "ls" on Unix.
SuSE linux comes with these kind of aliases and they turned up to have created more confusion than good. It's tempting to use them, but you will never properly learn Unix if you are to blindly adhere to them.
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LEARN ABOUT OPENSOLARIS
newaliases
newaliases(1M) System Administration Commands newaliases(1M)
NAME
newaliases - rebuild the data base for the mail aliases file
SYNOPSIS
newaliases
DESCRIPTION
newaliases rebuilds the random access data base for the mail aliases file /etc/mail/aliases.
newaliases accepts all the flags that sendmail(1M) accepts. However, most of these flags have no effect, except for the -C option and three
of the Processing Options that can be set from a configuration file with the -o option:
-C /path/to/alt/config/file
Use alternate configuration file.
-oAfile
Specify possible alias files.
-oLn
Set the default log level to n. Defaults to 9.
-on
Validate the RHS of aliases when rebuilding the aliases(4) database.
newaliases runs in verbose mode (-v option) automatically.
EXAMPLES
Example 1 Running the newaliases Command
The following command runs newaliases on an alias file different from the /etc/mail/aliases default in sendmail(1M):
example% newaliases -oA/path/to/alternate/alias/file
EXIT STATUS
newaliases returns an exit status describing what it did. The codes are defined in /usr/include/sysexits.h.
EX_OK Successful completion on all addresses.
EX_NOUSER User name not recognized.
EX_UNAVAILABLE Catchall. Necessary resources were not available.
EX_SYNTAX Syntax error in address.
EX_SOFTWARE Internal software error, including bad arguments.
EX_OSERR Temporary operating system error, such as "cannot fork".
EX_NOHOST Host name not recognized.
EX_TEMPFAIL Message could not be sent immediately, but was queued.
FILES
/etc/aliases Symbolic link to /etc/mail/aliases
/etc/mail/aliases.pag
/etc/mail/aliases.dir ndbm files maintained by newaliases
/etc/mail/aliases.db Berkeley DataBase file maintained by newaliases
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWsndmu |
+-----------------------------+-----------------------------+
SEE ALSO
sendmail(1M), aliases(4), attributes(5)
SunOS 5.11 14 Sep 2001 newaliases(1M)