Command-Line-Fu

• Losslessly rotate videos from your phone by 90 degrees.
  $ mkdir rotated; for v in *.3gp; do ffmpeg -i $v -vf transpose=2 -vcodec ffv1 rotated/${v/3gp/avi} ; done Takes all the .3gp files in the directory, rotates them by 90 degrees, and saves them in the lossless ffv1 encoding. If this rotates in the wrong direction, you may want transponse=1 Re-encoding to ffv1 may result in a significant increase in file size, […]
• How to access to virtual machine
  $ VBoxManage modifyvm "vm-name" --vrdp on --vrdpport 3389 --vrdpauthtype external --vrdp on enables VirtualBox RDP server for the VM --vrdpport 3389 ndicates the TCP port that the server will accept RDP connections direct to the VM (for each VM is assigned a different port) --vrdpauthtype external RDP console gives access to the VM Host physical us […]