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Creating a daemon in Linux
...ly a syslog daemon (syslogd) is used for logging messages to files (debug, error,...).
Besides that, there are a few required steps to daemonize a process.
If I remember correctly these steps are:
fork off the parent process & let it terminate if forking was successful. -> Because the p...
Trigger change event using jquery
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answered Mar 1 '14 at 13:05
Sohail xIN3NSohail xIN3N
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MySQL Update Inner Join tables query
I have no idea what the problem is. Using MySQL 5.0 I get a compile error when attempting to run the following MySQL update query:
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sed error: “invalid reference \1 on `s' command's RHS”
...t/' works but sed -e 's/([[:digit:]])/\1 is a digit/ produces the original error without -r to sed. NOTE: the first invocation of sed searches for a literal (<digit>) and is not a capture group.
– Andrew Falanga
Mar 24 '16 at 14:58
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cleanest way to skip a foreach if array is empty [duplicate]
... code with an unnecessary if statement. If $items is empty php throws an error.
11 Answers
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Replacing spaces with underscores in JavaScript?
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Crescent FreshCrescent Fresh
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Running a cron job on Linux every six hours
... I wanted to run it starting from 15:00 every 6 hours it would be 15 15,23,05,11 * * * /path/to/mycommand ?
– Gandalf StormCrow
Jul 19 '12 at 14:26
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How to fix 'sudo: no tty present and no askpass program specified' error?
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Try:
ssh -t remotehost "sudo <cmd>"
This will remove the above errors.
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Getting rid of bullet points from
...nd #otis?
– PeeHaa
Nov 27 '11 at 23:05
Actually there isn't one, I, um, just completely failed to see the id selector ...
INSERT … ON DUPLICATE KEY (do nothing)
...row update even though id is assigned to itself).
If you don't care about errors (conversion errors, foreign key errors) and autoincrement field exhaustion (it's incremented even if the row is not inserted due to duplicate key), then use INSERT IGNORE.
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