bash - How to extract numbers and special characters in a string in linux script -

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i have string basedir=/cp/osp/peaker/1543.23. here want extract 1543.23, in linux script, tell me how here.

may using sed, regex, unable do. here want 1543.23 (so want number , special character . also).

you use awk. like

echo $basedir | awk 'begin {fs="/"};{print $nf}'

that begins setting field separator (fs) "/" , printing last field.


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