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What is the proper way to check if a string is empty in Perl?
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answered Jan 11 '10 at 23:20
Greg HewgillGreg Hewgill
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Compare integer in bash, unary operator expected
... specifying a default value for $i if $i is blank, as follows:
if [ "${i:-0}" -ge 2 ] ; then ...
This will substitute the value 0 instead of $i is $i is undefined. I still maintain the quotes because, again, if $i is a bunch of blanks then it does not count as undefined, it will not be replaced ...
What does this gdb output mean?
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That is a confirmed bug of the iOS SDK 5 / Simulator - happens as soon as the simulator tries t...
What is the status of JSR 305?
I have seen the question JSR305 vs. JSR308 (Java Type Anotations) - Which is going to be the standard? and I understand the difference between JSR 308 and JSR 305 .
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Is there a way to crack the password on an Excel VBA Project?
I've been asked to update some Excel 2003 macros, but the VBA projects are password protected, and it seems there's a lack of documentation... no-one knows the passwords.
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MySQL: Invalid use of group function
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Backrub32
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answered Feb 25 '10 at 0:59
rjhrjh
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Select multiple records based on list of Id's with linq
... YuckYuck
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Highlight label if checkbox is checked
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edited Jul 20 '15 at 22:26
Eliasz Kubala
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How to get the start time of a long-running Linux process?
... PID CMD STARTED
1 Tue Jun 7 01:29:38 2016 /sbin/init
2 Tue Jun 7 01:29:38 2016 [kthreadd]
3 Tue Jun 7 01:29:38 2016 [ksoftirqd/0]
5 Tue Jun 7 01:29:38 2016 [kworker/0:0H]
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Rails: Check output of path helper from console
..., you can call app.post_path. This will work in Rails ~= 2.3 and >= 3.1.0.
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