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Python: How to get stdout after running os.system? [duplicate]
...ocess
p = subprocess.Popen(["pwd"], stdout=subprocess.PIPE)
out = p.stdout.read()
print out
Or as a function (using shell=True was required for me on Python 2.6.7 and check_output was not added until 2.7, making it unusable here):
def system_call(command):
p = subprocess.Popen([command], stdo...
Tar archiving that takes input from a list of files
...
On Solaris, you can use the option -I to read the filenames that you would normally state on the command line from a file. In contrast to the command line, this can create tar archives with hundreds of thousands of files (just did that).
So the example would read
...
Sending websocket ping/pong frame from browser
I keep reading about ping/pong messages in websockets to keep the connection alive, but I'm not sure what they are. Is it a distinct frame type? (I don't see any methods on a javascript WebSocket object in chrome related to ping-pong). Or is it just a design pattern (e.g. I literally send "ping" o...
c# open file with default application and parameters
... opened with the default application, I mean without specifying Acrobat or Reader, you can't open the file in the specified page.
On the other hand, if you are Ok with specifying Acrobat or Reader, keep reading:
You can do it without telling the full Acrobat path, like this:
Process myProcess =...
How can one pull the (private) data of one's own Android app?
...24 | python -c "import zlib,sys;sys.stdout.write(zlib.decompress(sys.stdin.read()))" | tar -xvf - (from above source)
– OJFord
Feb 25 '14 at 19:36
6
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How can I calculate an md5 checksum of a directory?
... ls -alR dir | md5sum . This is even better no compression just a read. It is unique because the content contains the mod time and size of file ;)
– Sid
Oct 3 '12 at 1:14
...
How to urlencode data for curl command?
...s as strings instead of parsing them as JSON and -sR (--slurp --raw-input) reads the input into a single string. -r (--raw-output) outputs the contents of strings instead of JSON string literals.
If the input is not the output of another command, you can store it in a jq string variable:
jq -nr --...
How to iterate over a JavaScript object?
...
@Cerbrus The OP allready knows how to iterate an array in parts. Using keys from the code given should be enough.
– Yoshi
Jan 17 '13 at 12:47
...
How to catch SQLServer timeout exceptions
...nder System.Data.SqlClient.TdsEnums for TIMEOUT_EXPIRED.
Your code would read:
if (ex.Number == -2)
{
//handle timeout
}
Code to demonstrate failure:
try
{
SqlConnection sql = new SqlConnection(@"Network Library=DBMSSOCN;Data Source=YourServer,1433;Initial Catalog=YourDB;Integrated Se...
Entity Framework Join 3 Tables
...n much thought when I commented, but certainly the naming conventions hurt readability (obv. copied from from OP). Also, the commas as the beginning of the line hurt readability a lot (subjective, for me), and whitespace / indentation could be slightly improved. I've submitted an edit with all of th...