如何在Linux脚本中提取字符串中的数字和特殊字符

Question

I have a string like basedir=/cp/osp/peaker/1543.23. here i want to extract 1543.23, in linux script, could someone tell me how to do this here.

May be using sed, regex, i was unable to do. here i want 1543.23 (so i want number and special character . also).

Answer 1

You could use awk . Something like

echo $basedir | awk 'BEGIN {FS="/"};{print $NF}'

That begins by setting the field separator (FS) to "/" and then printing the last field.