CODEWITHSUNDEEP
bashimage-resizing
user3447705
user3447705

Reputation: 91

bash batch image resize

How change this string:

find . -type f -name "*.jpg" | while read i; do convert "$i" -resize 50% "${i%%.jpg*}_tn.jpg"; done

to make tn_FILENAME.jpg files, not FILENAME_tn.jpg

Thank you!

Upvotes: 1

Views: 259

Answers (1)

ShellFish
ShellFish

Reputation: 4551

find . -type f -name "*.jpg" | while read i; do [[ "${i##*/}" =~ ^tn_ ]] || convert "$i" -resize 50% "${i%/*}/tn_${i##*/}"; done

You mean like this?

${i%/*} is the filename stripped of everything following the last dash (so the dir in which the file is located).

/tn_ adds the tn_ prefix to the file, and

${i##*/} strips everything from the file before the last dash (so it's the filename).

Paste these three together and you get your result.

Upvotes: 2

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