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How can I exclude one word with grep?
...ord)keyword' file
Demo:
$ cat file
foo1
foo2
foo3
foo4
bar
baz
Let us now list all foo except foo3
$ grep -P '(?!.*foo3)foo' file
foo1
foo2
foo4
$
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How to reverse a 'rails generate'
...stroy scaffold hohoho
Rails 3.2 adds a new d shortcut to the command, so now you can write:
rails d controller lalala
rails d model yadayada
rails d scaffold hohoho
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...
pg_config executable not found
...packages.
sudo apt-get install postgresql postgresql-dev python-dev
And now include the path to your postgresql binary dir with you pip install, this should work for either Debain or RHEL based Linux:
sudo PATH=$PATH:/usr/pgsql-9.3/bin/ pip install psycopg2
Make sure to include the correct pat...
Calculate date/time difference in java [duplicate]
...acto standard date and time library for Java prior to Java SE 8. Users are now asked to migrate to java.time (JSR-310).
Example for between calculation:
Seconds.between(startDate, endDate);
Days.between(startDate, endDate);
...
What is the recommended way to use Vim folding for Python code
...ldmethod=indent for Python. Then, in your .vimrc, set foldmethod=manual. Now, you can fold in both Python and non-Python with spacebar mapping
– Lionel
Jun 21 '12 at 21:54
a...
How to use if statements in underscore.js templates?
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@BlackDivine I know it's kind of late, but for alternating styles you should use :nth-child(even) and :nth-child(odd) CSS selectors, not change your template.
– prayerslayer
Aug 30 '13 at 8:41
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error_log per Virtual Host?
...h new versions of PHP as they add more error levels. E_ALL = "30719" right now.
– ReactiveRaven
Mar 8 '12 at 16:26
2
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Exclude .svn directories from grep [duplicate]
...:
alias sgrep='find . -path "*/.svn" -prune -o -print0 | xargs -0 grep'
Now you can do this:
sgrep some_var
... and get expected results.
Of course, if you're an insane person like me who just has to use the same .bashrc everywhere, you could spend 4 hours writing an overcomplicated bash func...
What is unit testing and how do you do it? [duplicate]
...un an exhaustive examination of your program's capabilities. So then you know it works and therefore write fewer bugs as well as fixing bugs with greater speed.
– robertpostill
Mar 16 '09 at 23:06
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What does $$ mean in the shell?
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Thanks. The mktemp option -t is now deprecated (I think because of problems with the char -). Use mktemp ${tempfoo}.XXXXXX these days. I take the liberty to update your post.
– Sebastian
Jan 10 '14 at 11:44
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