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Optimising Android application before release [closed]
... System.out.println(s);
}
//Better coding
final String txt = "Number=";
StringBuilder sb = new StringBuilder();
for(int i=0;i < 999999;i++){
sb.setLength(0);
sb.append(txt);
sb.append(i);
System.out.println(sb);
}
I wrote a more ex...
How do I escape spaces in path for scp copy in Linux?
...fficient, but I solved it using the "?" char instead:
for the file "tasks.txt Jun-22.bkp" I downloaded it using "tasks.txt?Jun-22.bkp"
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Get program execution time in the shell
...command like time -p i=x; while read line; do x=x; done < /path/to/file.txt? It immediatly returns 0.00 unless I don't put anything before the while loop.. what gives?
– natli
Dec 14 '12 at 21:45
...
Using pickle.dump - TypeError: must be str, not bytes
...
The output file needs to be opened in binary mode:
f = open('varstor.txt','w')
needs to be:
f = open('varstor.txt','wb')
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Difference between “process.stdout.write” and “console.log” in node.js?
...cess.stdout.write('1')
// can also pipe a readable stream (assuming `file.txt` exists)
const fs = require('fs')
fs.createReadStream('file.txt').pipe(process.stdout)
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...
Can grep show only words that match search pattern?
...It's more simple than you think. Try this:
egrep -wo 'th.[a-z]*' filename.txt #### (Case Sensitive)
egrep -iwo 'th.[a-z]*' filename.txt ### (Case Insensitive)
Where,
egrep: Grep will work with extended regular expression.
w : Matches only word/words instead of substring.
o : Display o...
Git blame — prior commits?
...e evolution of a range of lines.
For example :
git log -L 15,23:filename.txt
means "trace the evolution of lines 15 to 23 in the file named filename.txt".
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When do we need curly braces around shell variables?
...some text manipulation inside the braces:
STRING="./folder/subfolder/file.txt"
echo ${STRING} ${STRING%/*/*}
Result:
./folder/subfolder/file.txt ./folder
or
STRING="This is a string"
echo ${STRING// /_}
Result:
This_is_a_string
You are right in "regular variables" are not needed... But i...
How do I detect that an iOS app is running on a jailbroken phone?
...@"This is a test.";
[stringToBeWritten writeToFile:@"/private/jailbreak.txt" atomically:YES encoding:NSUTF8StringEncoding error:&error];
[[NSFileManager defaultManager] removeItemAtPath:@"/private/jailbreak.txt" error:nil];
if(error == nil)
{
return YES;
}
#endif
return...
How to print to stderr in Python?
... following result when run on the command line:
$ python3 foo.py > bar.txt
I print to stderr by default
and bar.txt will contain the 'hello world' printed on stdout.
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