I cannot duplicate your problem. Running on Solaris and cygwin under ksh, dash, and bash I get
There is one problem - you are only going to get integer answers because expr does integer arithmetic. Normally averages are floating point numbers....
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:
y1=`expr \( 1/ 16 \)`
it returns 0
and if i do
y1=`expr \( 1.6 / 16 \)`
it returns non numeric argument.
is there another command for mathematic... (4 Replies)
I need to accept a number of arguments at command line and print it in reverse order
i use eval `echo x=$1` to capture the argument
#! /bin/sh
counter=0
while
do
eval `echo x=$1`
arg$counter=$x
counter=`expr $counter + 1`
shift
done
but the error keeps... (1 Reply)
Hi all,
In KSH, I have got an error message like,
"expr: Integer argument too large"
I received this error message when I mutiply two large values and displaying the resultant output.
Is there any other altenative way to go with too large values?
Kindly let me know asap...
Thanks in... (12 Replies)
i got a file called Marks
The format of Marks is:
12345678 5 7
23456789 7 9 3
What can i do with a loop, read expr and echo command to produce a new file like below:
12345678:12
23456789:20
and also when we adding fewer than 3 value with expr, we need to change any null value for... (13 Replies)
Hi all,
i am facing the error "expr: non-numeric argument" when i use the expr command.
Following is the expression which i want to execute
HR=$(echo `date +%H`)
MIN=$(echo `date +%M`)
TOT_MIN=`expr "$HR" \* 60+$MIN` | bc
echo $TOT_MIN
Here I am being reported with the error expr:... (6 Replies)
i wrote this simple shell script
#!/bin/bash
read N1
read N2
expr $N1 + $N2
it work fine in bash and i add it on xinetd for some test but when i try to use in with telnet i got this error :
ehsan@debian:~$ telnet 192.168.1.4 1234
Trying 192.168.1.4...
Connected to 192.168.1.4.... (14 Replies)
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.
while read line
do
code_check = `expr substr "$line" 6 1`
if ; then
echo "${line}" >> /temp/bill/push_updated.dat
else
echo "line ignored"
fi
done <... (8 Replies)
Hi,
I am new to shell/bash script. I am trying to run below script
#!/bin/bash
a=0
b=10
if
then
echo "a is equal to be"
else
echo "a is not equal to be"
fi
MAX=10
while
do
echo $a
a='expr $a + 1'
done (1 Reply)
Hi,
I tried to look up the issue i'm experiencing, but i'm confused what's wrong with my script.
After executing the script I'm getting the following error
expr: non-numeric argument
syntax error on line 1, teletype
After some research, it seems that the problem relates to bc.
I have... (1 Reply)
Discussion started by: nms
1 Replies
LEARN ABOUT V7
arithmetic
ARITHMETIC(6) Games Manual ARITHMETIC(6)NAME
arithmetic - provide drill in number facts
SYNOPSIS
/usr/games/arithmetic [ +-x/ ] [ range ]
DESCRIPTION
Arithmetic types out simple arithmetic problems, and waits for an answer to be typed in. If the answer is correct, it types back "Right!",
and a new problem. If the answer is wrong, it replies "What?", and waits for another answer. Every twenty problems, it publishes statis-
tics on correctness and the time required to answer.
To quit the program, type an interrupt (delete).
The first optional argument determines the kind of problem to be generated; +-x/ respectively cause addition, subtraction, multiplication,
and division problems to be generated. One or more characters can be given; if more than one is given, the different types of problems
will be mixed in random order; default is +-
Range is a decimal number; all addends, subtrahends, differences, multiplicands, divisors, and quotients will be less than or equal to the
value of range. Default range is 10.
At the start, all numbers less than or equal to range are equally likely to appear. If the respondent makes a mistake, the numbers in the
problem which was missed become more likely to reappear.
As a matter of educational philosophy, the program will not give correct answers, since the learner should, in principle, be able to calcu-
late them. Thus the program is intended to provide drill for someone just past the first learning stage, not to teach number facts de
novo. For almost all users, the relevant statistic should be time per problem, not percent correct.
ARITHMETIC(6)