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Can I query MongoDB ObjectId by date?
...ew Date(timestamp);
}
/* Convert date object to hex seconds since Unix epoch */
var hexSeconds = Math.floor(timestamp/1000).toString(16);
/* Create an ObjectId with that hex timestamp */
var constructedObjectId = ObjectId(hexSeconds + "0000000000000000");
return constructe...
Allowed characters in filename [closed]
...out Mac OS X (now called MacOS) / in the Finder is interpreted to : in the Unix file system.
This was done for backward compatibility when Apple moved from Classic Mac OS.
It is legitimate to use a / in a file name in the Finder, looking at the same file in the terminal it will show up with a :....
How to make a python, command-line program autocomplete arbitrary things NOT interpreter
...ow to setup autocompletion of python objects in the python interpreter (on unix).
8 Answers
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grep a file, but show several surrounding lines?
...unately the Solaris grep does not support that. See that link for solaris: unix.com/solaris/33533-grep-display-few-lines-before-after.html
– рüффп
Mar 21 '11 at 12:55
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How to enable mod_rewrite for Apache 2.2
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The ideas here are correct for a UNIX CLI but the commands only work for a Debian based Linux distributions and not a Windows environment of the OP.
– Jason Rikard
Jul 21 '11 at 19:45
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Node.js: printing to console without a trailing newline?
... and my favorite reference is www2.phys.canterbury.ac.nz/dept/docs/manuals/unix/DEC_4.0e_Docs/… (99% of its contents still work). Only caveat: Be prepared to test any experiments on several different terminals before deploying widely.
– i336_
May 28 '17 at 12...
Convert number to month name in PHP
...; // March
The ! formatting character is used to reset everything to the Unix epoch. The m format character is the numeric representation of a month, with leading zeroes.
Alternative solution:
If you're using an older PHP version and can't upgrade at the moment, you could this solution.
The sec...
How can I see the size of files and directories in linux? [closed]
...he file. You can use du -d to get the actual size as ls does. More info: unix.stackexchange.com/a/106278/155224
– Lucas Alonso
Apr 19 '17 at 21:04
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Set up a scheduled job?
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BSD, Mac, and any Unix-like OS have cron.
– DylanYoung
Sep 3 '16 at 16:26
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How do you search for files containing DOS line endings (CRLF) with grep on Linux?
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You can use file command in unix. It gives you the character encoding of the file along with line terminators.
$ file myfile
myfile: ISO-8859 text, with CRLF line terminators
$ file myfile | grep -ow CRLF
CRLF
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