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how to change default python version?
...even aware of which expect python=python2, and changing this would break those programs and scripts.
The answer you are probably looking for is You should not change this.
You could, however, make a custom alias in your shell. The way you do so depends on the shell, but perhaps you could do alias ...
Redirecting Output from within Batch file
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The simple naive way that is slow because it opens and positions the file pointer to End-Of-File multiple times.
@echo off
command1 >output.txt
command2 >>output.txt
...
commandN >>output.txt
A better way - easier to write, and faster because the file is opened a...
sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
...ut Sed but need this command (which works fine on Ubuntu) to work on a Mac OSX:
4 Answers
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How to output a multiline string in Bash?
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Here documents are often used for this purpose.
cat << EOF
usage: up [--level <n>| -n <levels>][--help][--version]
Report bugs to:
up home page:
EOF
They are supported in all Bourne-derived shells including all versions of Bash.
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How do I determine which iOS SDK I have?
I'm sure this is simple, but how do I determine which version of the iOS SDK I currently have installed?
5 Answers
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Bash Script : what does #!/bin/bash mean? [duplicate]
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When bash is run as sh, it behaves differently (more POSIX-like) than when it is run as bash. Read the manual; it does cover that detail.
– Jonathan Leffler
Dec 14 '12 at 3:14
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Printing 1 to 1000 without loop or conditionals
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Compile time recursion! :P
#include <iostream>
template<int N>
struct NumberGeneration{
static void out(std::ostream& os)
{
NumberGeneration<N-1>::out(os);
os << N << std::endl;
}
};
template<>
struct NumberGener...
Origin null is not allowed by Access-Control-Allow-Origin
...iles. But basically, using ajax with local resources isn't going to work cross-browser.
If you're just testing something locally that you'll really be deploying to the web, rather than use local files, install a simple web server and test via http:// URLs instead. That gives you a much more accurat...
I change the capitalization of a directory and Git doesn't seem to pick up on it
I'm developing a project on OS X Lion that is under Git version control. I had these lowercase directories and then later capitalized them (e.g. emailaddresses => EmailAddresses), but Git doesn't seem to recognize the change. It still thinks the directories are lowercase when I run git ls-files an...
How to get names of classes inside a jar file?
...file.jar
-t list table of contents for archive
-v generate verbose output on standard output
-f specify archive file name
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