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Print array elements on separate lines in Bash?
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Try doing this :
$ printf '%s\n' "${my_array[@]}"
The difference between $@ and $*:
Unquoted, the results are unspecified. In Bash, both expand to separate args
and then wordsplit and globbed.
Quoted, "$@" expands each element as a separate argument, while ...
What is the best way to force yourself to master vi? [closed]
...n't even think about what keys to press to search or navigate or save. And my hands never leave the keyboard. To use Vim is one of the best choices I've made in my programming career.
share
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improv...
what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
...nice_hash gem: https://github.com/MarioRuiz/nice_hash
require 'nice_hash'
my_str = "{ 'user': { 'name': 'foo', 'age': 40, 'location': { 'city' : 'bar', 'state': 'ca' } } }"
# on my_hash will have the json as a hash
my_hash = my_str.json
# or you can filter and get what you want
vals = my_str.json...
Disable submit button when form invalid with AngularJS
I have my form like this:
6 Answers
6
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python: SyntaxError: EOL while scanning string literal
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In my situation, I had \r\n in my single-quoted dictionary strings. I replaced all instances of \r with \\r and \n with \\n and it fixed my issue, properly returning escaped line breaks in the eval'ed dict.
ast.literal_eval(my_...
How do I rename all folders and files to lowercase on Linux?
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A concise version using the "rename" command:
find my_root_dir -depth -exec rename 's/(.*)\/([^\/]*)/$1\/\L$2/' {} \;
This avoids problems with directories being renamed before files and trying to move files into non-existing directories (e.g. "A/A" into "a/a").
Or, a more...
Error : BinderProxy@45d459c0 is not valid; is your activity running?
... destroyed.
I was seeing this error reported once in a while from some of my apps when the activity calling the dialog was finishing for some reason or another when it tried to show a dialog. Here's what solved it for me:
if(!((Activity) context).isFinishing())
{
//show dialog
}
I've been u...
Custom Adapter for List View
I want to create a custom adapter for my list view. Is there any article that can walk me through how to create one and also explain how it works?
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Status bar won't disappear
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@PsychoDad Check my answer for a more global solution.
– Idan
Sep 19 '13 at 23:59
2
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Does Python optimize tail recursion?
...g on the
idea rather than on the process, having twenty short functions on my screen in the same
time rather than only three "Pythonic" functions, working in an interactive session rather than editing my code, etc.).
Optimizing tail-recursion in Python is in fact quite easy. While it is said to be ...