Re: Help for a beginner

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Re^2: Help for a beginner by Anonymous Monk on Mar 02, 2007 at 19:24 UTC
Or he could instead just copy the if-else block above that assignment and paste it below the assignment. It would be like that old saying, "If you love someone, set them free -- if they come back, assign a typeglob to them." :D	[reply]
Re^2: Help for a beginner by bobbruce0584 (Initiate) on Mar 02, 2007 at 19:27 UTC
Thank you so much. That worked. What was the $strComputer doing? I thought that you had to have that in there so that if nothing was called out it would default to the local host.	[reply]
Re^3: Help for a beginner by agianni (Hermit) on Mar 02, 2007 at 19:37 UTC
You're simply overwriting it with the assignment operator on line 12. A common way to deal with ensuring a default value is set is through the use of a C -style OR: `$strComputer = $ARGV[0] \|\| '.';` [download]	[reply] [d/l]
Re^4: Help for a beginner by Fletch (Bishop) on Mar 02, 2007 at 20:32 UTC
Of course be careful using this idiom if "0" is a valid value (in that case an assign-the-default-first-and-overwrite implementation is better).	[reply]
Re^4: Help for a beginner by GrandFather (Saint) on Mar 02, 2007 at 20:38 UTC
Although it derives from C (many of Perl's operators do), I doubt it is useful to call \|\| a "C style or". It's much more helpful to call it a "locical or" to distinguish it from \| which is a "bitwise or" (also found in C). The third variant 'or' is called "binary or" by the way. DWIM is Perl's answer to Gödel	[reply]