1. /Applications/file/BetterZip.app/Contents/Resources/7z Call the 7-Zip file archiver contained in BetterZip (which I happened to have from a MacUpdate Promo Bundle). There are several other Mac binaries available or you can download and compile from source.
2. a Add file(s) to archive
3. -mx9 Maximum ("Ultra") compression
4. -pSECRET Set password to SECRET
5. -mhe Encrypt archive headers (i.e., filenames will be encrypted also)
6. ~/Desktop/file.7z Name of archive to create or add files to
7. ~/Documents/file.ext File to compress and encrypt

8. && Execute next command only if previous command returns an exit status of zero (i.e., wait for command to complete successfully before proceeding)

9. scp Secure copy command
10. -P 2012 Connect via port 2012
11. ~/Desktop/file.7z Local file to copy
12. user@example.com:/home/ Remote username and domain followed by directory where file will be copied to

13. && Execute next command only if previous command returns an exit status of zero (i.e., wait for command to complete successfully before proceeding)

14. rm ~/Desktop/file.7z Delete 7z archive from local computer

• As the command list is rather long, you may want to make a permanent alias in OS X by adding a line like this one to your ~/.bash_profile:
  alias bkup='/Applications/file/BetterZip.app/Contents/Resources/7z a -mx9 -pSECRET -mhe ~/Desktop/file.7z ~/Documents/file.ext && scp -P 2012 ~/Desktop/file.7z user@example.com:/home/ && rm ~/Desktop/file.7z'
• After adding the above line, you can load your .bash_profile without logging out: $ source ~/.bash_profile
  and list current aliases with: $ alias -p
• Archive all text files in current directory: $ 7z a file.7z *.txt
• Extract all files from file.7z: $ 7z x file.7z

/mac | Sep 19, 2009