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Import SQL dump into PostgreSQL database
...ve tried that psql mydatabase < C:\database\db-backup.sql but i get the error Invalid command \database. I also tried with " " around it.
– dazz
Jul 27 '11 at 10:05
...
Count occurrences of a char in plain text file
... 1100000 occurences of the searched character:
real 0m0.089s
user 0m0.057s
sys 0m0.027s
Time for Vereb answer with echo, cat, tr and bc for the same file:
real 0m0.168s
user 0m0.059s
sys 0m0.115s
Time for Rob Hruska answer with tr, sed and wc for the same file:
real 0m0.465s
u...
Are static class variables possible in Python?
... the value of the class attribute using x instance
assert x.i == Test.i # ERROR
assert Test.i == 3 # Test.i was not affected
assert x.i == 12 # x.i is a different object than Test.i
This is because the line x.i = 12 has added a new instance attribute i to x instead of changing the value o...
How to check for a valid Base64 encoded string
...ase 64 encoded other than just trying to convert it and see if there is an error? I have code code like this:
19 Answers
...
How can I parse a CSV string with JavaScript, which contains comma in data?
...y one possible definition for "comma-separated values".
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2014-05-19: Added disclaimer.
2014-12-01: Moved disclaimer to top.
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How to get first record in each group using Linq
...
So glad i found this. I got error message "The method 'First' can only be used as a final query operation. Consider using the method 'FirstOrDefault' in this instance instead." from your example. Only operation on the list i did after the query was pass...
Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术
..., O_RDWR | O_TRUNC);
}
}
if (fd < 0) {
printf("Open file failed, error : %s", strerror(errno));
exit(1);
}
// 将该文件锁定,锁定后的文件将不能够再次锁定
struct flock fl;
fl.l_type = F_WRLCK; // 写文件锁定
fl.l_start = 0;
fl.l_whence = SEEK_SET;
fl...
JavaScript + Unicode regexes
...
205
Situation for ES 6
The upcoming ECMAScript language specification, edition 6, includes Unicode-...
node and Error: EMFILE, too many open files
For some days I have searched for a working solution to an error
17 Answers
17
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How to search and replace globally, starting from the cursor position and wrapping around the end of
... of use.
– q335r49
Mar 18 '14 at 22:05
Neither the original command nor its version with a prompt returns the cursor t...