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Top Forums Shell Programming and Scripting Converting String To Integer/Float (weird case) Post 302989360 by wisecracker on Wednesday 11th of January 2017 01:46:10 PM
Old 01-11-2017
Quote:
Originally Posted by Don Cragun
It isn't really clear to me what you're trying to do in cases where there is no <hyphen> character in your output from awk. Is a return value like 000000234 to remain unchanged or do you want to remove leading zeros?

If you always want to remove leading zeros (and never have a string that is all zeros and don't want to change your awk script, you don't need to use bc to perform your arithmetic; it can all be done with variable expansions:
Code:
$ x=000000234
$ echo ${x##*[^1-9-]}
234
$ x=0-123456
$ echo ${x##*[^1-9-]}
-123456
$ 

Sadly it is not entirely foolproof:-
OSX 10.12.2, default bash terminal.
Here 230 is a valid number.
Code:
Last login: Wed Jan 11 18:39:25 on ttys000
AMIGA:amiga~> x=000000230
AMIGA:amiga~> echo ${x##*[^1-9-]}

AMIGA:amiga~> _

 

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Excel::Template::Container::KeepLeadingZeros(3pm)	User Contributed Perl Documentation	 Excel::Template::Container::KeepLeadingZeros(3pm)

NAME
Excel::Template::Container::KeepLeadingZeros - Excel::Template::Container::KeepLeadingZeros PURPOSE
To set the keep_leading_zeros flag for the surrounding worksheet or any worksheets that might be contained within this node. NODE NAME
KEEP_LEADING_ZEROS INHERITANCE
CONTAINER ATTRIBUTES
None CHILDREN
None EFFECTS
Alters how leading zeros are interpreted by Spreadsheet::WriteExcel. DEPENDENCIES
None USAGE
<worksheet> ... Cells here will NOT have leading-zeros preserved <keep_leading_zeros> ... Cells here will have leading-zeros preserved </keep_leading_zeros> ... Cells here will NOT have leading-zeros preserved </worksheet> <keep_leading_zeros> <worksheet> ... Cells here will have leading-zeros preserved </worksheet> <worksheet> ... Cells here will have leading-zeros preserved </worksheet> </keep_leading_zeros> AUTHOR
Rob Kinyon (rob.kinyon@gmail.com) SEE ALSO
CELL, Spreadsheet::WriteExcel perl v5.14.2 2010-06-17 Excel::Template::Container::KeepLeadingZeros(3pm)
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