Output specific line for exiv2?

Question

Using exiv2, you can output image information in the terminal. However, it outputs several lines of information:

exiv2 -ps ~/filelocation/filename.jpg

Outputs something like this:

File name       : ~/filelocation/filename.jpg
File size       : 12345 Bytes
MIME type       : image/jpeg
Image size      : 800 x 600
~/filelocation/filename.jpg: No Exif data found in the file

How do I command the terminal to only output the image size data from this?

What I really want is this:

exiv2 -ps ~/filelocation/filename.jpg [some command here]

Output:

800 x 600

exiv2 -ps /filelocation/filename.jpg | grep "Image size" | awk -F ':' '{print $2}' This gets me close, but I can't figure it out any more than this. — Patrick Hennessey, Jun 26 '18 at 17:27

Paul Hodges · Accepted Answer · 2018-06-26T17:34:19.397

2

Try this -

exiv2 -ps ~/filelocation/filename.jpg |
  sed -n '/Image size/{ s/^.*: //; p; }'

sed's -n suppresses default output.

/pattern/ matches line by line.

{...} wraps a script of actions to take on lines that match.

s/^.*: //; strips the leading string.

p; prints the value.

edited Jun 26 '18 at 17:34

answered Jun 26 '18 at 17:30

Paul Hodges

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This made my terminal choke. – Patrick Hennessey Jun 26 '18 at 17:33
1

I had to switch to quotation marks: exiv2 -ps filename.jpg | sed -n "/Image size/{ s/^.*: //; p; }" – Patrick Hennessey Jun 26 '18 at 17:34
1

I don't have exiv2, so I flubbed the copy/paste and had a lone backtick. Try now. – Paul Hodges Jun 26 '18 at 17:35

Output specific line for exiv2?

1 Answers1