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Adding a new entry to the PATH variable in ZSH
...: Yes. When you open a shell it inherits PATH from the parent process that started it, and then when it runs .zshrc (or .bashrc or whatever), that's what lets you add extra things to that path.
– Linuxios
Nov 18 '19 at 0:04
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Watch multiple $scope attributes
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Starting from AngularJS 1.3 there's a new method called $watchGroup for observing a set of expressions.
$scope.foo = 'foo';
$scope.bar = 'bar';
$scope.$watchGroup(['foo', 'bar'], function(newValues, oldValues, scope) {
//...
Replace console output in Python
...more sophisticated is a progress bar... this is something I am using:
def startProgress(title):
global progress_x
sys.stdout.write(title + ": [" + "-"*40 + "]" + chr(8)*41)
sys.stdout.flush()
progress_x = 0
def progress(x):
global progress_x
x = int(x * 40 // 100)
sys.s...
Grep characters before and after match?
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A good answer for small amounts of data, but it starts getting slow when you are matching >100 characters - e.g. in my giant xml file, I want {1,200} before and after, and it is too slow to use.
– Benubird
Oct 18 '13 at 11:27
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Is there a way to ignore header lines in a UNIX sort?
...to a temporary file, then run the above command on that new file, but it's starting to get ugly enough that it's probably better to use one of the awk-based solutions given in the other responses.
– BobS
Nov 23 '14 at 0:04
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How to check if a float value is a whole number
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Wouldn't it be easier to test the cube roots? Start with 20 (20**3 = 8000) and go up to 30 (30**3 = 27000). Then you have to test fewer than 10 integers.
for i in range(20, 30):
print("Trying {0}".format(i))
if i ** 3 > 12000:
print("Maximum integral ...
How to delete files/subfolders in a specific directory at the command prompt in Windows
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This is nice if you need to come back to your starting location, otherwise simply CD mypath && RD /S . would be enough. I don't like that you have to repeat your path twice though, for long paths it becomes hard to read. So I would just add a set p="mypath" at th...
What are all the common ways to read a file in Ruby?
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It comes from programming history. Here's a starting point perl.com/article/21/2013/4/21/Read-an-entire-file-into-a-string
– the Tin Man
Aug 28 at 0:28
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How to get rid of Git submodules untracked status?
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In my situation I clone modules as a starting point for a new module in my ZF2 environment. What this does is put its own .git folder into the directory.
Solution in this case is to delete the .git folder (you will likely need to show hidden files to view it)....
multiple prints on the same line in Python
... between (all in the same function / indentation level). Before the action starts, there is no output at all and after it is finished the output appears as whole
– Paddre
Feb 20 '15 at 15:08
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