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Shell Programming and Scripting

Traveltime script

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# 8  
Old 08-08-2010
it's a comment, i commented it out because i wasn't sure if Mythl had commented his test script code which is why i was asking if he had maybe changed his version.
# 9  
Old 08-08-2010
Quote:
Originally Posted by nvidiaaaa2
it's a comment, i commented it out because i wasn't sure if Mythl had commented his test script code which is why i was asking if he had maybe changed his version.
So, if you uncomment it (and add some validation), it works?
# 10  
Old 08-08-2010
I updated my code to include the validation, at present it does not work as it says:

Code:
traveltime: line 18: 40 \% 60: syntax error: invalid arithmetic operator (error token is "\% 60")

with my updated code as follows:

Code:
if [ $# -ne 2 ]; then
  echo "need input params"
  exit
fi
X60=$(($1 * 60))
TOTMINUTES=$(($X60 / $2))
HURS=$(($TOTMINUTES / 60))
MINUTES=$(($TOTMINUTES \% 60))
echo "The trip will take $HOURS hours and $MINUTES minutes"

# 11  
Old 08-08-2010
Two things:

1. Remove the \ before %. It might work for methyl, but obviously not for us:
Code:
MINUTES=$(($TOTMINUTES % 60))

2. You mispelled HOURS:
Code:
HOURS=$(($TOTMINUTES / 60))

Code:
./Travel 30 60
The trip will take 0 hours and 30 minutes

# 12  
Old 08-08-2010
aah ok, i'm suich a noob, for misspelling hours, sorry, i'm not use to the interface yet as i'm using putty on my windows machine and it taking time for my eyes to adjust to the color scheme.

Thanks
# 13  
Old 08-08-2010
Quote:
Originally Posted by nvidiaaaa2
aah ok, i'm suich a noob, for misspelling hours, sorry, i'm not use to the interface yet as i'm using putty on my windows machine and it taking time for my eyes to adjust to the color scheme.

Thanks
There's no need to apologise Smilie It just means the output would have been:
Code:
The trip will take  hours and 30 minutes
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