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How to pass in password to pg_dump?
...ting systems allow non-root users to see process environment variables via ps; instead consider using the ~/.pgpass file
– bouchon
Nov 23 '15 at 8:35
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socket.error: [Errno 48] Address already in use
...rocess still bound to the port. Try and locate the other process first:
$ ps -fA | grep python
501 81651 12648 0 9:53PM ttys000 0:00.16 python -m SimpleHTTPServer
The command arguments are included, so you can spot the one running SimpleHTTPServer if more than one python process is active...
How to fix Error: laravel.log could not be opened?
...your web server user and group use the following commands. for nginx use:
ps aux|grep nginx|grep -v grep
for apache use:
ps aux | egrep '(apache|httpd)'
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How to round an average to 2 decimal places in PostgreSQL?
...r, @Catcall and the PostgreSQL team agree about "pg's historic rationale".
PS: another point about rounding is accuracy, check @IanKenney's answer.
Overloading as casting strategy
You can overload the ROUND function with,
CREATE FUNCTION ROUND(float,int) RETURNS NUMERIC AS $$
SELECT ROUND($1::...
Export query result to .csv file in SQL Server 2008
...ons. For example all the NULLs show in output files as "NULL", etc. Perhaps there is a way to set this that I don't know about, however.
– Noah
Sep 6 '13 at 7:36
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Peak detection in a 2D array
...lue, filter overlapping squares
def drop_overlapping(pairs):
no_overlaps = []
def does_not_overlap(p1, p2):
i1, i2 = p1[0], p2[0]
r1, col1 = i1 / (width-1), i1 % (width-1)
r2, col2 = i2 / (width-1), i2 % (width-1)
return (max(abs(r1-r2),abs(col1-col2)) >= ...
Is it possible to start a shell session in a running container (without ssh)
...lxc-attach -n <ID>
Note that the id needs to be the full one (docker ps -notrunc).
However, I strongly recommend against this.
notice: -notrunc is deprecated, it will be replaced by --no-trunc soon.
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How can I escape a double quote inside double quotes?
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+1 because it solved a problem of adding a PS1 variable to ~/.profile echo 'export PS1='\[\033[00;31m\]${?##0}$([ $? -ne 0 ] && echo \x22 \x22)\[\033[00;32m\]\u\[\033[00m\]@\[\033[00;36m\]\h\[\033[00m\][\[\033[01;33m\]\d \t\[\033[00m\]] \[\033[01;34m\]\w\n\[...
Possible to change where Android Virtual Devices are saved?
I've set up the Android SDK and Eclipse on my machine running Windows XP and AVDs (Android Virtual Devices) are saved to "Documents and Settings\ user \.android" by default. Is there any way to change this behavior? I have all of the other components saved in a directory on a separate partition an...
How to increase font size in a plot in R?
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Thanks! What is the difference with "ps=1.5"?
– Tim
Nov 22 '10 at 2:44
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