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Shell Programming and Scripting
Non-integer argument in expr
Post 302520537 by ahamed101 on Sunday 8th of May 2011 01:35:05 AM
05-08-2011
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Hi everybody,
I want to know how can i use the command 'expr' to manipulate float number , i have a shell bash and when (for example) i do:
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it returns 0
and if i do
y1=`expr \( 1.6 / 16 \)`
it returns non numeric argument.
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In KSH, I have got an error message like,
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Hi all,
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Hi,
I am trying to execute a simple script as below to compare a value from a file and copy that line based on a condition.
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hi,
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Hi,
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Hi,
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expr: non-numeric argument
syntax error on line 1, teletype
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LEARN ABOUT SUSE
sum
SUM(1) User Commands SUM(1) NAME
sum - checksum and count the blocks in a file SYNOPSIS
sum [OPTION]... [FILE]... DESCRIPTION
Print checksum and block counts for each FILE. -r use BSD sum algorithm, use 1K blocks -s, --sysv use System V sum algorithm, use 512 bytes blocks --help display this help and exit --version output version information and exit With no FILE, or when FILE is -, read standard input. AUTHOR
Written by Kayvan Aghaiepour and David MacKenzie. REPORTING BUGS
Report sum bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for sum is maintained as a Texinfo manual. If the info and sum programs are properly installed at your site, the command info coreutils 'sum invocation' should give you access to the complete manual. GNU coreutils 7.1 July 2010 SUM(1)