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How do I use the lines of a file as arguments of a command?
...ne argument in quotes so that it can contain whitespace, escape sequences, etc., reading from the file will not do the same thing. For example, if your file contains:
a "b c" d
the arguments you will get are:
a
"b
c"
d
If you want to pull each line as an argument, use the while/read/do constru...
What do the makefile symbols $@ and $< mean?
...icate filenames removed since for most uses, such as
compiling, copying, etc., duplicates are not wanted.
$+: Similar to $^, this is the names of all the prerequisites separated
by spaces, except that $+ includes duplicates. This variable was
created for specific situations such as arguments...
Relational table naming convention [closed]
...ubject Area:
REF_ for Reference tables
OE_ for the Order Entry cluster, etc.
Only at the physical level, not the logical (it clutters the model).
Suffix
Never use suffixes on tables, and always use suffixes on everything else. That means in the logical, normal use of the database, there are n...
How to test my servlet using JUnit
...r things like HttpServletRequest, HttpServletResponse, HttpServletSession, etc:
http://static.springsource.org/spring/docs/3.0.x/api/org/springframework/mock/web/package-summary.html
Using these mocks, you could test things like
What happens if username is not in the request?
What happens if use...
Having Django serve downloadable files
... header too.
# You can also set any other required headers: Cache-Control, etc.
return response
Of course, this will only work if you have control over your server, or your hosting company has mod_xsendfile already set up.
EDIT:
mimetype is replaced by content_type for django 1.7
response =...
Why use sprintf function in PHP?
...s formatting of the input data. For example, forcing 2dp, 4-digit numbers, etc. It's quite useful for building MySQL query strings.
Another advantage is that it allows you to separate the layout of the string from the data being fed into it, almost like feeding in paramaters. For example, in the ca...
Internal Error 500 Apache, but nothing in the logs?
...th grep PHP /var/log/syslog. Probably because I had error_log = syslog in /etc/php5/apache2/php.ini.
– mivk
Nov 18 '16 at 20:15
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show 2 mor...
What is the difference between integration testing and functional testing? [closed]
...whether it is functionally working properly or not (testing buttons, links etc.)
For example: Login page.
you provide the username and password, you test whether it is taking you to home page or not.
Integration Testing:
Yes, you test the integrated software only but you test where the data flow...
Is there a way for non-root processes to bind to “privileged” ports on Linux?
...service as non-root but bind low ports. The short answer is that you do:
setcap 'cap_net_bind_service=+ep' /path/to/program
And then anytime program is executed thereafter it will have the CAP_NET_BIND_SERVICE capability. setcap is in the debian package libcap2-bin.
Now for the caveats:
You wi...
What is a “web service” in plain English?
I've been reading about "web services" here on SO, on Wikipedia, Google, etc., and I don't quite understand what they are. What is the plain English definition/description?
...