The Windows dir directory listing command has a line at the end showing the total amount of space taken up by the files listed. For example, dir *.exe shows all the .exe files in the current directory, their sizes, and the sum total of their sizes. I'd love to have similar functionality with my dir alias in bash, but I'm not sure exactly how to go about it.Currently, I have alias dir='ls -FaGl' in my .bash_profile, showing drwxr-x---+  24 mattdmo  4096 Mar 14 16:35 ./drwxr-x--x. 256 root    12288 Apr  8 21:29 ../-rw-------    1 mattdmo 13795 Apr  4 17:52 .bash_history-rw-r--r--    1 mattdmo    18 May 10  2012 .bash_logout-rw-r--r--    1 mattdmo   395 Dec  9 17:33 .bash_profile-rw-r--r--    1 mattdmo   176 May 10  2012 .bash_profile~-rw-r--r--    1 mattdmo   411 Dec  9 17:33 .bashrc-rw-r--r--    1 mattdmo   124 May 10  2012 .bashrc~drwx------    2 mattdmo  4096 Mar 24 20:03 bin/drwxrwxr-x    2 mattdmo  4096 Mar 11 16:29 download/for example. Taking the answers from this question:dir | awk '{ total += $4 }; END { print total }'which gives me the total, but doesn't print the directory listing itself. Is there a way to alter this into a one-liner or shell script so I can pass any ls arguments I want to dir and get a full listing plus sum total? For example, I'd like to run dir -R *.jpg *.tif to get the listing and total size of those file types in all subdirectories. Ideally, it would be great if I could get the size of each subdirectory, but this isn't essential.
Show sum of file sizes in directory listing
bash;shell script;awk;ls
The following function does most of what you're asking for:dir () { ls -FaGl ${@} | awk '{ total += $4; print }; END { print total }'; }... but it won't give you what you're asking for from dir -R *.jpg *.tif, because that's not how ls -R works. You might want to play around with the find utility for that.