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Get a list of all the files in a directory (recursive)
...rying to get (not print, that's easy) the list of files in a directory and its sub directories.
4 Answers
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Relative frequencies / proportions with dplyr
Suppose I want to calculate the proportion of different values within each group. For example, using the mtcars data, how do I calculate the relative frequency of number of gears by am (automatic/manual) in one go with dplyr ?
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How to select records from last 24 hours using SQL?
... If you want to select the last 24 hours from a datetime field, substitute 'curate()' with 'now()'. This also includes the time.
– Haentz
Apr 30 '11 at 6:11
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Converting Long to Date in Java returns 1970
I have list with long values (for example: 1220227200, 1220832000, 1221436800...) which I downloaded from web service. I must convert it to Dates. Unfortunately this way, for example:
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How do I format a number in Java?
...ill be 100.24
The DecimalFormat() seems to be the most dynamic way to do it, and it is also very easy to understand when reading others code.
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Can you get the column names from a SqlDataReader?
...follow
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edited Oct 28 '14 at 13:50
answered Mar 25 '09 at 13:50
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Proxies with Python 'Requests' module
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The proxies' dict syntax is {"protocol":"ip:port", ...}. With it you can specify different (or the same) proxie(s) for requests using http, https, and ftp protocols:
http_proxy = "http://10.10.1.10:3128"
https_proxy = "https://10.10.1.11:1080"
ftp_proxy = "ftp://10.10.1.10:3128"...
Undefined reference to `pow' and `floor'
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You need to compile with the link flag -lm, like this:
gcc fib.c -lm -o fibo
This will tell gcc to link your code against the math lib. Just be sure to put the flag after the objects you want to link.
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How to append contents of multiple files into one file
I want to copy the contents of five files to one file as is. I tried doing it using cp for each file. But that overwrites the contents copied from the previous file. I also tried
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Listing only directories in UNIX
...in specified path ( ls doesn't have such option).
Also, can this be done with a single line command?
20 Answers
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