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Script parameters in Bash
...h bar.sh $1
# cat foo2.sh
bash bar.sh "$1"
# bar.sh
echo "1-$1" "2-$2"
Now invoke:
$ bash foo.sh "a b"
1-a 2-b
$ bash foo2.sh "a b"
1-a b 2-
When you invoke foo.sh "a b" then it invokes bar.sh a b (two arguments), and with foo2.sh "a b" it invokes bar.sh "a b" (1 argument). Always have in mi...
Cookies vs. sessions
...than simplicity. Look at it this way... Does the user have any reason to know their ID#? Typically I would say no, the user has no need for this information. Giving out information should be limited on a need to know basis. What if the user changes his cookie to have a different ID, how will you...
Copy all files with a certain extension from all subdirectories
...
Yes. 'bin it' means to throw it away. Now amended :-)
– Brian Agnew
Mar 25 '13 at 14:12
13
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What does the (unary) * operator do in this Ruby code?
...ame, mouse, country, usa. Then the splat is used to make that into a Hash. Now the Ruby people always send you to look at the Splat method, since everything is exposed in Ruby. I have no idea where it is, but once you have that, you'll see that it runs a for through the array and builds the hash.
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Difference between and text
There are many legends about them. I want to know the truth. What are the differences between the two following examples?
3...
Synchronization vs Lock
...e running 1.5
consider j.u.c.ReentrantLock. Java
6's intrinsic locking is now
comparable.
j.u.c.Lock has different mechanisms
for locking. Lock interruptable -
attempt to lock until the locking
thread is interrupted; timed lock -
attempt to lock for a certain amount
of time and ...
Linux bash: Multiple variable assignment
...ent was about the reason why the read happens in a subshell, and I realize now I misread what you wrote. I thought you meant that the subshell was created because you used the curly braces around the compound statement. But! The reason you gave that example was to avoid forking, and but won't the su...
How is TeamViewer so fast?
...m/talk/libjingle/developer_guide. They used to (and may still do, I don't know) use it for GChat, Hangouts etc.
– Jamie Edwards
Dec 17 '15 at 9:14
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Synchronously waiting for an async operation, and why does Wait() freeze the program here
Preface : I'm looking for an explanation, not just a solution. I already know the solution.
4 Answers
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Storing DateTime (UTC) vs. storing DateTimeOffset
...rom UTC to local time, and from local time to UTC), so I can use DateTime.Now (derivations and comparisions) throughout the system without worrying about time zones.
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