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How to execute a Ruby script in Terminal?
...call ruby your_program.rb, I get this: ruby: No such file or directory -- testapp.rb (LoadError)
– Tom Maxwell
Jan 4 '12 at 2:53
1
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Viewing contents of a .jar file
...
javap example: javap -classpath test.jar com.yourpackage.HelloWorld
– mPrinC
Sep 22 '17 at 20:28
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Check number of arguments passed to a Bash script
...
Just like any other simple command, [ ... ] or test requires spaces between its arguments.
if [ "$#" -ne 1 ]; then
echo "Illegal number of parameters"
fi
Or
if test "$#" -ne 1; then
echo "Illegal number of parameters"
fi
Suggestions
When in Bash, prefer using [[...
Reading a simple text file
...cess it.
AssetManager am = context.getAssets();
InputStream is = am.open("test.txt");
Or you can also put the file in the /res/raw directory, where the file will be indexed and is accessible by an id in the R file:
InputStream is = context.getResources().openRawResource(R.raw.test);
...
How do you test a public/private DSA keypair?
...ter/ssh
Note: My previous answer (in Mar 2018) no longer works with the latest releases of openssh. Previous answer: diff -qs <(ssh-keygen -yf ~/.ssh/id_rsa) <(cut -d ' ' -f 1,2 ~/.ssh/id_rsa.pub)
share
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Ternary operator is twice as slow as an if-else block?
... {
34: if (i > 0)
00000088 85 C0 test eax,eax
0000008a 7E 08 jle 00000094
35: {
36: value += 2;
0000008c 83 C3 02 add ebx,2
0000008f 83 D7 00 ...
How to validate an e-mail address in swift?
...
wouldn't return emailTest.evaluateWithObject(testStr) be a lot more simpler and readable? Comparing to == true is a bit like Javascript.
– Sulthan
Aug 24 '14 at 11:55
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How to perform runtime type checking in Dart?
...on, the is operator is defined on page 59 of the spec, section 10.30 'Type test'
– Duncan
Oct 11 '11 at 8:53
4
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How to get index using LINQ? [duplicate]
...o search.</param>
///<param name="predicate">The expression to test the items against.</param>
///<returns>The index of the first matching item, or -1 if no items match.</returns>
public static int FindIndex<T>(this IEnumerable<T> items, Func<T, bool> ...
Which selector do I need to select an option by its text?
...
This could help:
$('#test').find('option[text="B"]').val();
Demo fiddle
This would give you the option with text B and not the ones which has text that contains B. Hope this helps
For recent versions of jQuery the above does not work. As comm...