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127 Return code from $?
What is the meaning of return value 127 from $? in UNIX.
8 Answers
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What's the difference between [ and [[ in Bash? [duplicate]
...test)
works about the same as [ in all the other sh-based shells in many UNIX-like environments
only supports a single condition. Multiple tests with the bash && and || operators must be in separate brackets.
doesn't natively support a 'not' operator. To invert a condition, use a ! outs...
NOW() function in PHP
...y higher performance, but less usable for date/time manipulations
// From Unix timestamp
// Using date_create() with a Unix timestamp will give you a FALSE,
// and if you try to invoke format() on a FALSE then you'll get a:
// Fatal error: Call to a member function format() on boolean
// So...
File name? Path name? Base name? Naming standard for pieces of a path
...or Root Directory: Former is .NET convention while latter is more heard in UNIX circles. Though I like both I tend to use the former more. In windows, unlike UNIX, has many different root paths, one for each partition. Unix systems have one root directory which holds information on other directories...
How do I write a bash script to restart a process if it dies?
... processes that aren't their children.
There is a very good reason why in UNIX, you can ONLY wait on your children. Any method (ps parsing, pgrep, storing a PID, ...) that tries to work around that is flawed and has gaping holes in it. Just say no.
Instead you need the process that monitors your...
How do I get the file name from a String containing the Absolute file path?
...C:\\Hello\\AnotherFolder\\The File Name.PDF" but your code is working on a Unix/Linux machine then p.getFileName() will return the whole path, not just The File Name.PDF.
– nyxz
Dec 29 '14 at 11:34
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PHP Timestamp into DateTime
...n is just:
DateTime::createFromFormat('U', $timeStamp);
Where 'U' means Unix epoch. See docs: http://php.net/manual/en/datetime.createfromformat.php
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Calendar Recurring/Repeating Events - Best Storage Method
...peat_interval_1 432000
With repeat_start being a date with no time as a unix timestamp, and repeat_interval an amount in seconds between intervals (432000 is 5 days).
repeat_interval_1 goes with repeat_start of the ID 1. So if I have an event that repeats every Tuesday and every Thursday, the r...
Best way to store date/time in mongodb
... example.
If you need to, you can easily convert Date objects to and from Unix timestamps1), using the getTime() method and Date(milliseconds) constructor, respectively.
1) Strictly speaking, the Unix timestamp is measured in seconds. The JavaScript Date object measures in milliseconds since the U...
Windows equivalent of the 'tail' command
...output everything after the first 2 lines.
This is actually the inverse of Unix head:
Unix console:
root@server:~$ head -2 myfile.txt
The above command will print only the first 2 lines of the file.
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