Batch remove substring from filename with special characters in BASH

Question

I have a list of files in my directory:

opencv_calib3d.so2410.so
opencv_contrib.so2410.so
opencv_core.so2410.so
opencv_features2d.so2410.so
opencv_flann.so24         


        

Answer 1

a='opencv_calib3d.so2410.so'
echo "${a%%.so*}${a#*.so}"
opencv_calib3d2410.so

Where:

• ${a%%.so*} - the part before the first .so
• ${a#*.so} - the part after the first .so