Currently I have the following bash script that does a for loop in the directory:
for filename in *-example99.jpg
do
width=$(identify -format "%w" "$filename")
myVar="newName$width"
new=$(echo $filename | sed -e 's/\.jpg$/"$myVar".jpg/')
echo "$filename" "$new"
mv "$filename" "$new"
done
actually, I want to rename the file from:
myfilename-example99.jpg
to:
myfilename-newName.jpg
How can I achieve this?
You don't need to call out to sed: bash parameter substitution can handle this task. Try this:
suffix="-example99.jpg"
for filename in *"$suffix" # wildcard * must remain unquoted
do
width=$(identify -format "%w" "$filename")
new="${filename%$suffix}-newName${width}.jpg"
echo mv "$filename" "$new"
done
The ${filename%$suffix} removes the suffix from the end of the string. See https://www.gnu.org/software/bash/manual/bash.html#Shell-Parameter-Expansion
Simply with prename (Perl rename):
myVar="newName"
prename 's/-[^-.]+(\.jpg)$/-'"$myVar"'$1/' *-example99.jpg
sed), doesn't the renaming and the loop look fine?