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Shell Programming and Scripting

decimal calculation

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# 1  
Old 11-07-2008
Bug decimal calculation
Hi
am calculating the percentage of the pass and fail.
Pass:
echo `echo 1498*100/1667| bc`%
fail:
echo `echo 169*100/1667 | bc`%


for this am getting

PASS= 89%
fail =10 %

I need to fetch the exact decimal percentage like

PASS = 89.8 %
FAIL= 10.2 %

Please advice me
# 2  
Old 11-07-2008
no way to calculate real foatingpoint in shell. user perl
# 3  
Old 11-07-2008
Code:
echo `echo 169*100/1667 | bc -l`

# 4  
Old 11-07-2008
Quote:
Originally Posted by demwz
no way to calculate real foatingpoint in shell. user perl
Depends on the shell:

Code:
% ksh -c 'print ${.sh.version};printf "%.1f\n" $(((1498*100)/1667.))'
Version M 93s+ 2008-01-31
89.9
% zsh -c 'printf "%.1f\n" $(((1498*100)/1667.))'
89.9

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