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So I've been trying to put a timestamp on some images I'm downloading from a webcam, but so far it's been saving the images with the names camera3_date'

here's my line that I enter:

wget --output-document=camera_3‘date +%Y-%m-%d_%H:%M:%S’.jpg [IP]/image.jpg

and then it downloads like such:

--2014-11-25 11:10:28--  [Couldn't Add this FTP link].jpg
           => “camera3_‘date”
Resolving +%y-%m-%d_%h... failed: Name or service not known.
wget: unable to resolve host address “+%y-%m-%d_%h”
--2014-11-25 11:10:28--  [http link .jpg not allowed]
Connecting to [IP]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 447143 (437K) [image/jpeg]
Saving to: “camera3_‘date”

100%[======================================>] 447,143      486K/s   in 0.9s

2014-11-25 11:10:29 (486 KB/s) - “camera3_‘date” saved [447143/447143]

FINISHED --2014-11-25 11:10:29--
Downloaded: 1 files, 437K in 0.9s (486 KB/s)

So I'm getting the image I want but I can't save the timestamp correctly, how should I fix this?

share|improve this question
    
wget -o "camera_3$(date +%F_%T).jpg" [IP]/image.jpg – Stéphane Chazelas Nov 25 '14 at 17:46
    
Yes that worked! Thanks! – Brad Flynn Nov 25 '14 at 17:59
up vote 1 down vote accepted

You have to use backticks (`) instead of fancy quotes (‘).

wget --output-document=camera_3`date +%Y-%m-%d_%H:%M:%S`.jpg [IP]/image.jpg

Or better yet use the sub command notation, $(...).

wget --output-document=camera_3$(date +%Y-%m-%d_%H:%M:%S).jpg [IP]/image.jpg

Additionally you can simply the formatting to date like so:

wget --output-document=camera_3$(date +%F_%T).jpg [IP]/image.jpg

The date macros %F and %T are shorthand for the %Y-%m-%d and %H:%M:%S formats.

share|improve this answer
    
Perfect! Thanks! – Brad Flynn Nov 25 '14 at 17:59
    
@BradFlynn - please remember to mark this as the accepted answer so other's know your issues' been resolved. – slm♦ Nov 25 '14 at 18:21

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