大约有 19,000 项符合查询结果(耗时:0.0402秒) [XML]
Are there any free Xml Diff/Merge tools available? [closed]
...ased. There are specific diff tools for e.g. CSV files that understand the format it is diffing. The better that understanding, the more effective the diffing can happen. A good XML diff tool would be able to parse the XML, use a schema to determine constraints such as whether order matters for exam...
How can I quickly sum all numbers in a file?
... { print $sum'
The result is a more verbose version of the program, in a form that no one would ever write on their own:
BEGIN { $/ = "\n"; $\ = "\n"; }
LINE: while (defined($_ = <ARGV>)) {
chomp $_;
$sum += $_;
}
sub END {
print $sum;
}
-e syntax OK
Just for giggles, I tried ...
How can I check if a command exists in a shell script? [duplicate]
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Could you put this in the form of an if/else statement (one that doesn't output to the console)?
– Andrew
Sep 23 '11 at 2:37
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Rails 2.3-style plugins and deprecation warnings running task in Heroku
...g to Rails 3.2, and running rake db:migrate gives me several errors of the form:
8 Answers
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How can I generate an MD5 hash?
...e representation in. If you just use string.getBytes() it will use the platform default. (Not all platforms use the same defaults)
import java.security.*;
..
byte[] bytesOfMessage = yourString.getBytes("UTF-8");
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] thedigest = md.digest(by...
Git on Bitbucket: Always asked for password, even after uploading my public SSH key
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I cloned someone's repository form bitbucket, and here is my remotes. manecs-MBP:LocationTracker manec$ git remote -v origin https://Vysh1@bitbucket.org/Vysh1/locationtracker.git (fetch) origin https://Vysh1@bitbucket.org/Vysh1/locationtracker.git (push)
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What does $@ mean in a shell script?
... They are often used to simply pass all arguments to another program (thus forming a wrapper around that other program).
The difference between the two syntaxes shows up when you have an argument with spaces in it (e.g.) and put $@ in double quotes:
wrappedProgram "$@"
# ^^^ this is correct and wi...
How to put a delay on AngularJS instant search?
I have a performance issue that I can't seem to address. I have an instant search but it's somewhat laggy, since it starts searching on each keyup() .
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How can I parse a time string containing milliseconds in it with python?
...laces.
– ilkinulas
Mar 30 '09 at 18:01
5
Woa I can tell the the Python docs needs updating. Docs ...
JavaScript property access: dot notation vs. brackets?
Other than the obvious fact that the first form could use a variable and not just a string literal, is there any reason to use one over the other, and if so under which cases?
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