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How can I recall the argument of the previous bash command?
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!!:n where n is the 0-based position of the argument you want.
For example:
echo 'one' 'two'
# "one two"
echo !!:2
# "two"
The ! prefix is used to access previous commands.
Other useful commands:
!$ - last argument from previous command
!^...
TortoiseSVN icons not showing up under Windows 7
...and then back on, and the Tortise overlay icons reappeared. I'm using the 64-bit version of both Win7 and TortiseSVN.
– Chris Staley
Aug 30 '09 at 1:20
96
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How do I create a SHA1 hash in ruby?
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There's also Digest::SHA1.base64digest 'foo'
– andrewrk
Jan 14 '12 at 1:31
14
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How do I write a short literal in C++?
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Jonathan Leffler
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answered Oct 16 '08 at 13:01
Mike FM...
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
I'm used to using relational databases like MySQL or PostgreSQL, and combined with MVC frameworks such as Symfony, RoR or Django, and I think it works great.
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Multi-line regex support in Vim
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Create an empty list in python with certain size
...ect. So unless you simply want 10 copies of the same object, use the range based variant as it creates 10 new objects. I found this distinction very important.
– Mandeep Sandhu
Apr 23 '18 at 18:29
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C++11 range based loop: get item by value or reference to const
Reading some examples of range based loops they suggest two main ways 1, 2, 3, 4
4 Answers
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Check if an element's content is overflowing?
...> element.clientWidth;
}
var els = document.getElementsByClassName('demos');
for (var i = 0; i < els.length; i++) {
var el = els[i];
el.style.borderColor = (isOverflown(el) ? 'red' : 'green');
console.log("Element #" + i + " is " + (isOverflown(el) ? '' : 'not ') + "overflown.");...
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...ts a simple way of doing it. You write your twitter data to a file, or database (MySQL or MongoDB) on first request, then every subsequent request you check current time against the time limit you want for the file (you could name the file as the time limit), and if the file exists and file name is ...