Answer:

To list the dot underscore files in a Mac directory, you can use:

# find . -name '._*' -exec ls {} \;

To remove them, you can try:

# find . -name '._*' -exec rm -v {} \;

Answer:

To clear your terminal's shell buffer in Mac OS X, you can use COMMAND + K

Answer:

For services installed using home brew, usually they will tell you how to turn on/off auto start when you use the command, e.g.

# brew info redis

redis: stable 2.4.17, devel 2.6.0-rc7, HEAD

http://redis.io/

Not installed

https://github.com/mxcl/homebrew/commits/master/Library/Formula/redis.rb

==> Caveats
If this is your first install, automatically load on login with:
    mkdir -p ~/Library/LaunchAgents
    cp /usr/local/Cellar/redis/2.4.17/homebrew.mxcl.redis.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.redis.plist

If this is an upgrade and you already have the homebrew.mxcl.redis.plist loaded:
    launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.redis.plist
    cp /usr/local/Cellar/redis/2.4.17/homebrew.mxcl.redis.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.redis.plist

  To start redis manually:
    redis-server /usr/local/etc/redis.conf

  To access the server:
    redis-cli

Answer:

To show all the listening ports in Mac OSX, try

# lsof -iTCP -sTCP:LISTEN

Answer:

To show hidden files in Mac file dialogs (e.g. Open/Save file dialog), you can use the shortcut

shift + command + .

That's it.

Answer:

To check the Mac OS version, it is easy with the following command.

# defaults read loginwindow SystemVersionStampAsString
10.7.3

Answer:

To show all the files in Finder, you can open the terminal and type:

defaults write com.apple.finder AppleShowAllFiles TRUE

Then restart Finder

killall Finder

Answer:

Bash completion (bash-complete) is a tool that allow you to auto complete commands and their arguments easily using the "tab" keys.

Firstly, make sure you have installed Homebrew, then

# brew install git bash-completion

And add the following lines in your ~/.bash_profile

if [ -f `brew --prefix`/etc/bash_completion ]; then
    . `brew --prefix`/etc/bash_completion
fi

Restart your terminal and now you can see the effect of bash complete by tabbing..

Answer:

To get the MD5 checksum of a file under Mac OSX, like the md5sum command in Linux, you can use:

# md5 my-file.zip

Answer:

To import a private key e.g. key.p12 into your login keychain, use the command:

# security import key.p12 -k ~/Library/Keychains/login.keychain