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Bash script processing limited number of commands in parallel
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So basically i=0; waitevery=4; for link in "${links[@]}"; do wget "$link" & (( i++%waitevery==0 )) && wait; done >/dev/null 2>&1
– kojiro
Oct 23 '13 at 13:48
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How can I get the behavior of GNU's readlink -f on a Mac?
...adlink utility accepts an option -f that follows additional links. This doesn't seem to work on Mac and possibly BSD based systems. What would the equivalent be?
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Worst security hole you've seen? [closed]
...hon98> ********* see!
<AzureDiamond> hunter2
<AzureDiamond> doesnt look like stars to me
<Cthon98> <AzureDiamond> *******
<Cthon98> thats what I see
<AzureDiamond> oh, really?
<Cthon98> Absolutely
<AzureDiamond> you can go hunter2 my hunter2-ing hun...
how to get the one entry from hashmap without iterating
...s also why there is no get-by-index method on Map (or HashMap).
You could do this:
Map<String, String> map = ...; // wherever you get this from
// Get the first entry that the iterator returns
Map.Entry<String, String> entry = map.entrySet().iterator().next();
(Note: Checking for a...
Replacing .NET WebBrowser control with a better browser, like Chrome?
...mework and has been used in a number of major projects including Rdio's Windows client, Facebook Messenger for Windows and Github for Windows.
It features browser controls for WPF and Winforms and has tons of features and extension points. Being based on Chromium it's blisteringly fast too.
Grab ...
jQuery UI DatePicker - Change Date Format
...orKnowledge just use y. datepicker-formatting
– Shadoath
Mar 24 '15 at 17:08
11
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Read only the first line of a file?
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Use the .readline() method (Python 2 docs, Python 3 docs):
with open('myfile.txt') as f:
first_line = f.readline()
Some notes:
As noted in the docs, unless it is the only line in the file, the string returned from f.readline() will contain a trailing ne...
How to get a value from a cell of a dataframe?
... @Sophologist I agree that its ridiculous that this is required. It also does not work when you try to pass the conditionals inline; my_df.loc[my_df['Col1'] == foo]['Col2'] still returns an object of type <class 'pandas.core.series.Series'>
– user5359531
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Create timestamp variable in bash script
...Define a timestamp function
timestamp() {
date +"%T" # current time
}
# do something...
timestamp # print timestamp
# do something else...
timestamp # print another timestamp
# continue...
If you don't like the format given by the %T specifier you can combine the other time conversion specifiers...
How to get value from form field in django framework?
How do I get values from form fields in the django framework? I want to do this in views, not in templates...
5 Answers
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