[ale] Neat code clip: cp progress bar

[Brandon Wood]

I saw this post on Hacker News today and thought that it deserved to be
shared:


Can you get cp to give a progress bar like
wget?<http://chris-lamb.co.uk/2008/01/24/can-you-get-cp-to-give-a-progress-bar-like-wget/>
via Hacker News <http://news.ycombinator.com/> on 3/4/10

< zed0> can you get cp to give a progress bar like wget?

Damn right you can.

#!/bin/sh
cp_p(){
   strace -q -ewrite cp -- "${1}" "${2}" 2>&1 \
      | awk '{        count += $NF            if (count % 10 == 0) {
            percent = count / total_size * 100               printf
"%3d%% [", percent               for (i=0;i<=percent;i++)
    printf "="               printf ">"               for
(i=percent;i<100;i++)                  printf " "               printf
"]\r"            }         }         END { print "" }'
total_size=$(stat -c '%s' "${1}") count=0}

In action:

% cp_p /mnt/raid/pub/iso/debian/debian-2.2r4potato-i386-netinst.iso /dev/null
76% [===========================================>                    ]


Comments <http://news.ycombinator.com/item?id=1166542>
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