Mac Terminal Usefull commands

Terminal

Show All Files in Mac system
step 1: Open Terminal
step 2: write below commands

$ defaults write com.apple.finder AppleShowAllFiles YES
$ killall Finder

1 - first command will visible all files including hidden files
2 - Close all finder window
3 - Window + ALt + right click on finder -> Relunch

Undo above

$ defaults write com.apple.finder AppleShowAllFiles NO
$ killall Finder

//Convert .p12 file to .pem certificates
//REference link: http://changhoward.blogspot.in/2011/10/how-to-convert-p12-files-to-pem-files.html
#. Convert certificate to pem file format
$ openssl pkcs12 -clcerts -nokeys -out dev-cert.pem -in dev-cert.p12
#. Convert private key to pem file format (password cannot be left blank, so key in 1234 and we will remove it in next step)
$ openssl pkcs12 -nocerts -out dev-key-password.pem -in dev-key.p12