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Re: math, percentage

X-seq: zsh-users 9806
From: "Brian K. White" <brian@xxxxxxxxx>
To: <zsh-users@xxxxxxxxxx>
Subject: Re: math, percentage
Date: Sat, 31 Dec 2005 15:44:23 -0500
Mailing-list: contact zsh-users-help@xxxxxxxxxx; run by ezmlm
Organization: Aljex Software
References: <024d01c60dd7$576ed990$931fa8c0@venti> <20051231072500.GJ39217@xxxxxxxxxxxxxxxx>

----- Original Message -----From: "Dan Nelson" <dnelson@xxxxxxxxxxxxxxx>

To: "Brian K. White" <brian@xxxxxxxxx>
Cc: <zsh-users@xxxxxxxxxx>
Sent: Saturday, December 31, 2005 2:25 AM
Subject: Re: math, percentage

In the last episode (Dec 31), Brian K. White said:

is there a way to do this with built in math instead of running bc ?

tp=`echo "scale=0;(${t}*100)/$T" |bc`

T = some dynamic total number like `ls |wc -l`
t = counter that starts at 1 and incriments as a loop walks through T
tp = percent of total job completed so far


(( tp=t*100/T ))


Nice.
Never knew you could do the assignment inside the braces like that,

but even so I should have thought to at least try tp=$((t*100/T)) since Iuse n=$((n+1)) a hundred times a day.


thanks
Brian K. White  --  brian@xxxxxxxxx  --  http://www.aljex.com/bkw/
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