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How to overlay images
...DIT: To clarify for your example - you could ignore the visibility:hidden; and kill the :hover execution if you wanted, this was just the way I did it.
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Count number of occurrences of a pattern in a file (even on same line)
...occurrences, use -o. Try this:
echo afoobarfoobar | grep -o foo | wc -l
And man grep of course (:
Update
Some suggest to use just grep -co foo instead of grep -o foo | wc -l.
Don't.
This shortcut won't work in all cases. Man page says:
-c print a count of matching lines
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Defining custom attrs
I need to implement my own attributes like in com.android.R.attr
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Getting the names of all files in a directory with PHP
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Don't bother with open/readdir and use glob instead:
foreach(glob($log_directory.'/*.*') as $file) {
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}
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How does this checkbox recaptcha work and how can I use it?
...signed up to the oneplusone website https://account.oneplus.net/sign-up , and noticed this checkbox recaptcha
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Check if a string contains one of 10 characters
I'm using C# and I want to check if a string contains one of ten characters, *, &, # etc etc.
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Java List.contains(Object with field value equal to x)
...at has a field with a certain value. Now, I could use a loop to go through and check, but I was curious if there was anything more code efficient.
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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
... on some record (you're updating every record in the table!) for too long, and your thread is being timed out.
You can see more details of the event by issuing a
SHOW ENGINE INNODB STATUS
after the event (in sql editor). Ideally do this on a quiet test-machine.
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Can you attach Amazon EBS to multiple instances?
We currently use multiple webservers accessing one mysql server and fileserver. Looking at moving to the cloud, can I use this same setup and attach the EBS to multiple machine instances or what's another solution?
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Golang: How to pad a number with zeros when printing?
...d|%6d|\n", 12, 345)
Notice the 0 in %06d, that will make it a width of 6 and pad it with zeros. The second one will pad with spaces.
You can see it in action here: http://play.golang.org/p/cinDspMccp
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