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Find and Replace Inside a Text File from a Bash Command
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Note for Mac users who get an invalid command code C error... For in-place replacements, BSD sed requires a file extension after the -i flag because it saves a backup file with the given extension. For example: sed -i '.bak' 's/find/replace/' /file.txt You can skip the backu...
Why is list initialization (using curly braces) better than the alternatives?
...char c2 = val2; // if val2==1025, c2 becomes 1 (bad)
int x3 {val}; // error: possible truncation (good)
char c3 {val2}; // error: possible narrowing (good)
char c4 {24}; // OK: 24 can be represented exactly as a char (good)
char c5 {264}; // error (assuming 8-bit chars): 264 cann...
How to read values from properties file?
...sys_name\conf\app.properties . Deployment process gets simplified and less error-prone.
– jpfreire
Feb 12 '16 at 21:18
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If my interface must return Task what is the best way to have a no-operation implementation?
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Recently encountered this and kept getting warnings/errors about the method being void.
We're in the business of placating the compiler and this clears it up:
public async Task MyVoidAsyncMethod()
{
await Task.CompletedTask;
}
This brings together the b...
The name 'ConfigurationManager' does not exist in the current context
...ular assembly and version of VS it was necessary to restart the IDE or the error would just keep happening. that was the solution. The two highly rated answers here were never relevant to the question actually being asked, but you don't think to wonder why someone would answer a question without r...
How to re-sign the ipa file?
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You may got an warning / error on --resource-rules parameters, which have been deprecated in OS X Yosemite (10.10), simply delete this parameter solve this issue.
– ıɾuǝʞ
Dec 17 '14 at 10:25
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Why does Node.js' fs.readFile() return a buffer instead of string?
... data.length)
Asynchronously:
fs.readFile('test.txt', 'utf8', function (error, data) {
if (error) throw error;
console.log(data.toString());
});
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...ve didn't work for -O2/-O3 (ld blew up with some crazy symbol redefinition error), so I don't believe the generated code is tuned for my microarchitecture.
There may be a way to do this slightly faster with SSE. I have no idea how, but with fast replication, packed bitwise AND, and swizzling instru...
How to drop multiple columns in postgresql
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Does not work for me. I get: ERROR: 42601: syntax error at or near ","
– Audrey
Nov 5 '14 at 12:12
9
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Check to see if python script is running
...bind('\0' + process_name)
print 'I got the lock'
except socket.error:
print 'lock exists'
sys.exit()
get_lock('running_test')
while True:
time.sleep(3)
It is atomic and avoids the problem of having lock files lying around if your process gets sent a SIGKILL
You can...