Web-Programming Notes

SSH: .ssh and authorized_keys permissions

smartcoding — Wed, 25 Jan 2012 18:46:51 +0000

You should set following permissions in order to be able to login via ssh:

$ cd ~
$ chmod 700 .ssh
$ chmod 600 .ssh/authorized_keys

git: keep .git outside the working tree dir

smartcoding — Wed, 25 Jan 2012 11:42:59 +0000

When initializing/cloning:

$ git --work-tree=htdocs --git-dir=repo init

Linux: remove path from $PATH

smartcoding — Wed, 25 Jan 2012 10:37:53 +0000

PATH=$(echo $PATH |sed 's/\/blah\/wrongdir//')

Linux: find inaccessible route in $PATH

smartcoding — Wed, 25 Jan 2012 10:34:31 +0000

echo $PATH |tr ':' '\n' |xargs ls -ld

MySQL: offset

smartcoding — Tue, 24 Jan 2012 15:26:29 +0000

Unfortunately looks like there is no other way rather than doing so:

SELECT * FROM table LIMIT 15, 18446744073709551615

if you need to select all entries except for first 15.

PHP: access array from inside double quotes

smartcoding — Tue, 24 Jan 2012 15:14:34 +0000

$myString = "Hello, {$users[1]['firstname']}! How r u?";

VIM: text indent multiple times

smartcoding — Sun, 15 Jan 2012 16:52:44 +0000

Here are few techniques that allows to shift selected text more than once:
1)

press ESC
press “v” to enter visual mode
select text
SHIFT plus “>” twice
press “.” to repeat last indent

press ESC
press “v” to enter visual mode
select text
SHIFT plus “>” twice
press “g” then “v” and use any indent you require

In order to automate this method add following to your .vimrc file:

vnoremap < vnoremap > >gv

CSS: holey element illussion

smartcoding — Tue, 06 Dec 2011 13:34:21 +0000

A small tip: if you assign fixed background to multiple elements (note, this can be body as well), background’s position will be exactly the same regardless of elements positions.

Here is a live example made by Harry Roberts:
http://jsfiddle.net/csswizardry/7BXUf/show/

CSS: pseudo class :focus in Chrome

smartcoding — Tue, 29 Nov 2011 14:09:10 +0000

Just in case you need to add :focus styles to an element and it doesn’t work in Chrome, try:

Link

GIT: update multiple repos/branches at once

smartcoding — Wed, 23 Nov 2011 10:10:56 +0000

Just for example, to update two branches at once (for instance, I wanted my repo’s github pages source look exactly the same as the repo itself) add to .git/config in “[remote]” block following:

push = +refs/heads/master:refs/heads/gh-pages
push = +refs/heads/master:refs/heads/master

Now by running `git push` you will update two branches at once. Pretty cool.