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UGU: Unix Guru Universe - Unix Tip #4644- November 28, 2023
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Unix Tip #4644- November 28, 2023
REGULAR EXPRESSION FOR FLOATING POINT NUMBER
This the Regular expression for floating point numbers and
this can be used with grep or egrep for searching
floating point numbers in any text file.
(\+|-)?([0-9]+\.?[0-9]*|\.[0-9]+)([eE](\+|-)?[0-9]+)?
This tip generously supported by: udayk@india.hp.com
NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
test each tip in a non-volitile environment before placing into
production.
LAST 5 TIPS
4643
- CHANGING PERMS RECURSIVELY
4642
- METAVALUES FROM A SHELL SCRIPT
4641
- CHANGING OWNERS REGULARLY
4640
- CLEANING DIRECTORIES
4639
- REMOVING BLANK LINES
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