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How do I adb pull ALL files of a folder present in SD Card
...x:
adb shell find "/sdcard/Folder1" -iname "*.jpg" | tr -d '\015' | while read line; do adb pull "$line"; done;
Here is an explanation:
adb shell find "/sdcard/Folder1" - use the find command, use the top folder
-iname "*.jpg" - filter the output to only *.jpg files
| ...
How to think in data stores instead of databases?
...Just layout your web page. Lay them all out. Now look at them. You're already 2/3 there.
If you forget the notion that database size matters and data shouldn't be duplicated then you're 3/4 there and you didn't even have to write any code! Let your views dictate your Models. You don't have t...
What is the difference between user and kernel modes in operating systems?
...t
of the code running on your computer
will execute in user mode.
Read more
Understanding User and Kernel Mode
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How to execute file I'm editing in Vi(m)
... it allows launching sequence of commands that are connected with pipe and read stdout.
For example:
! node %
is equivalent to opening command prompt window and launching commands:
cd my_current_directory
node my_current_file
See "Vim tips: Working with external commands" for details.
...
What is the meaning of “non temporal” memory accesses in x86
...nd not (immediately) consumed again, the fact that memory store operations read a full cache line first and then modify the cached data is detrimental to performance. This operation pushes data out of the caches which might be needed again in favor of data which will not be used soon. This is especi...
How do I convert dates in a Pandas data frame to a 'date' data type?
...iles, in which case you can simply convert the date during the initial CSV read:
dfcsv = pd.read_csv('xyz.csv', parse_dates=[0]) where the 0 refers to the column the date is in.
You could also add , index_col=0 in there if you want the date to be your index.
See https://pandas.pydata.org/pandas-do...
What does Redis do when it runs out of memory?
...e more memory, like SET, LPUSH, and so on, and will continue
# to reply to read-only commands like GET.
#
# This option is usually useful when using Redis as an LRU cache, or to set
# a hard memory limit for an instance (using the 'noeviction' policy).
#
# WARNING: If you have slaves attached to an ...
How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...te(df.loc[idx[:,mask_1],idx[[mask_2],:]].fillna(value=0))
It's one line, reads reasonably well (sort of) and eliminates any unnecessary messing with intermediate variables or loops while allowing you to apply fillna to any multi-level slice you like!
If anybody can find places this doesn't work p...
Convert list of dictionaries to a pandas DataFrame
... NaN NaN
1 7.0 9.0 NaN NaN NaN 5.0
2 NaN 4.0 7.0 NaN 6.0 NaN
Reading Subset of Columns
"What if I don't want to read in every single column"? You can easily specify this using the columns=... parameter.
For example, from the example dictionary of data2 above, if you wanted to read only...
How can I remove an element from a list?
...he back of the list to the front.
A response to that post later in the thread states:
For deleting an element of a list, see R FAQ 7.1
And the relevant section of the R FAQ says:
... Do not set x[i] or x[[i]] to NULL, because this will remove the corresponding component from the list.
...