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Top Forums UNIX for Dummies Questions & Answers Accepting command line arguments in bash Post 302607948 by Corona688 on Thursday 15th of March 2012 06:46:38 PM
Old 03-15-2012
Quote:
Originally Posted by kristinu
I understand bash can only do integer comparisons. What does one do for floating point comparisons?
Use something other than bash...

awk for instance is a full-fledged language that's found on any UNIX system which is capable of quite a bit. It's not shell, however.

Quote:
It seems that for integer comparison, I got to use the -eq as there is no ==
For [ ] , you use -eq for numbers or = for strings.

Quote:
Also there are no && and || in bash, but there is -a and -o.
There's no && or || in [ ] brackets in general. If you used [[ ]] brackets there would be. They're nearly the same as [ ] but have && and || and a few other things.
 

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LESSECHO(1)						      General Commands Manual						       LESSECHO(1)

NAME
lessecho - expand metacharacters SYNOPSIS
lessecho [-ox] [-cx] [-pn] [-dn] [-mx] [-nn] [-ex] [-a] file ... DESCRIPTION
lessecho is a program that simply echos its arguments on standard output. But any argument containing spaces is enclosed in quotes. OPTIONS
A summary of options is included below. -ox Specifies "x" to be the open quote character. -cx Specifies "x" to be the close quote character. -pn Specifies "n" to be the open quote character, as an integer. -dn Specifies "n" to be the close quote character, as an integer. -mx Specifies "x" to be a metachar. -nn Specifies "n" to be a metachar, as an integer. -ex Specifies "x" to be the escape char for metachars. -fn Specifies "n" to be the escape char for metachars, as an integer. -a Specifies that all arguments are to be quoted. The default is that only arguments containing spaces are quoted. SEE ALSO
less(1) AUTHOR
This manual page was written by Thomas Schoepf <schoepf@debian.org>, for the Debian GNU/Linux system (but may be used by others). Send bug reports or comments to bug-less@gnu.org. Version 444: 09 Jun 2011 LESSECHO(1)
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