[Pdx-pm] DBD::mysql cont.

Austin Schutz tex at off.org
Wed Mar 31 11:50:11 CST 2004

On Wed, Mar 31, 2004 at 12:22:44PM -0500, Jeff Lavallee wrote:
> James - I have always used
> tcsh$ setenv FOO bar

	Probably works better than set FOO bar. Here's a tidbit from the
handy 'man tcsh' command. Esp note the tidbit about "null string":

       set name ...
       set name=word ...
       set [-r] [-f|-l] name=(wordlist) ... (+)
       set name[index]=word ...
       set -r (+)
       set -r name ... (+)
       set -r name=word ... (+)
               The  first form of the command prints the value of
               all shell variables.  Variables which contain more
               than  a  single word print as a parenthesized word
               list.  The second  form  sets  name  to  the  null
               string.   The  third  form sets name to the single
               word.  The fourth form sets name to  the  list  of
               words in wordlist.  In all cases the value is com­
               mand and filename expanded.  If -r  is  specified,
               the value is set read-only.  If -f or -l are spec­
               ified, set only unique words keeping their  order.
               -f  prefers the first occurrence of a word, and -l
               the last.  The fifth form sets the index'th compo­
               nent  of name to word; this component must already
               exist.  The sixth form lists only the names of all
               shell  variables  that are read-only.  The seventh
               form makes name read-only, whether or not it has a
               value.   The  second  form  sets  name to the null
               string.  The eighth form is the same as the  third
               form, but make name read-only at the same time.

               These arguments can be repeated to set and/or make
               read-only multiple variables in a single set  com­
               mand.  Note, however, that variable expansion hap­
               pens for all arguments before any setting  occurs.
               Note  also  that  `=' can be adjacent to both name
               and word or separated from both by whitespace, but
               cannot  be adjacent to only one or the other.  See
               also the unset builtin command.

       setenv [name [value]]
               Without arguments, prints the names and values  of
               all  environment  variables.  Given name, sets the
               environment variable name  to  value  or,  without
               value, to the null string.

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