Count lines in all files

wc -l *

How to check for changes on remote (origin) git repository?

You could git fetch origin to update the remote branch in your repository to point to the latest version. For a diff against the remote:

 git diff origin/master

If you want to accept the remote changes:

 git merge origin/master

Read CSV file

sed "s/,/\t/g" filename.csv | less -S

Convert file from utf8 to cp1251

iconv -f utf8 -t cp1251 < index.php > index.php.1251

Send html POST command from console

curl --data "param1=value1&param2=value2" http://hostname/resource

Determine and change file character encoding

file -bi [filename]

Example output:

steph@localhost ~ $ file -bi test.txt text/plain; charset=us-ascii 
  
Use vim to change a file's encoding:

set encoding=utf-8
set fileencoding=utf-8

Create bootable USB key with Windows 7 from Linux

1. dd if=/w7.iso of=/dev/sdx
2. ms-sys -7 /dev/sdx

Link to ms-sys in AUR (archlinux)