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How to insert a text at the beginning of a file?
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11
You can use cat -
printf '%s' "some text at the beginning" | cat - filename
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Find (and kill) process locking port 3000 on Mac
...e some seconds
– Alfonso Pérez
Nov 11 '15 at 13:51
4
Another tip: Make sure to try sudo before t...
Preventing form resubmission
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answered Oct 19 '10 at 11:56
CodeTwiceCodeTwice
2,64633 gold badges1414 silver badges1717 bronze badges
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Assign multiple columns using := in data.table, by group
...ws","cols"):=dim(get(objectName)),by=objectName] (I'm using data.table 1.8.11)
– dnlbrky
May 19 '14 at 2:00
@dnlbrky d...
How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
Can't connect to MySQL server error 111 [closed]
...box IP = 192.168.1.100 but when i try to connect to this IP it alway error(111). but use localhost and 127.0.0.1 is OK.
4 A...
What is the best collation to use for MySQL with PHP? [closed]
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11 Answers
11
Active
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Fastest way to count exact number of rows in a very large table?
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answered May 20 '11 at 8:23
gbngbn
382k7272 gold badges532532 silver badges629629 bronze badges
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Set database timeout in Entity Framework
...eout).
– Clay Lenhart
Jul 25 '13 at 11:01
3
My problem was a litte different. I got timeout durin...
Is it better practice to use String.format over string Concatenation in Java?
...sition)? Thanks.
– markvgti
Aug 20 '11 at 7:28
13
Better late than never, random Java version: do...