# Variables used in this shell.
power=0 # Stores squared integer
total=0 # Sum of all squared integers
num=0 # Stores command line arguements
# Provides error handling if command line arguments are 0.
if [ $# = 0 ]; then
echo "Usage $0 - integer-list"
exit 1
fi
# Function that is used to sum all integers values
# from the power variable; store the sum in total variable.
sum()
{
total=`expr $total + $power`
}
# Iterate through the command line arguments, and store
# each integer in $num.
for num in $@; do
if [ $num -ge 1 -a $num -le 65536 ]; then
# $num squared stored in power variable.
power=`expr $num \* $num`
# Output computation result.
echo "$num squared equals = $power"
# Call sum() function to evaluate the sum of
# squared integers.
sum
# Else, if argument is over 65536, print user notification that
# the maximum number has been reached.
elif [ $num -ge 65536 ]; then
echo "65536 is the maximum number for this script"
exit 1
# Otherwise; when the arguments are not in range of 0-65536,
# prompt user why shell executes prematurely.
else
# User notification.
echo "$num is an invalid argument. Only natural numbers from 0 to 65536 are valid."
# Exit shell script.
exit 1
fi
done
# Print out the sum of the sqaured number list.
echo "Total sum of the squared integers: $total"
# Exit shell script.
exit 0
Everything runs fine except when I type in a sting as argument I get the following error:
Code:
[: 63: Illegal number: string
I want that whatever input is provided a custom error message is printed instead of that error code above. Any hints on that are greatly appreciated.
I have a script which connects to remote server and ftp the files
It works fine, however if there is any failure in ftp connection can it be handled???
ftp log
ftp session start time is: Thu Jun 19 00:00:02 BST 2008
Not connected.
Not connected.
Interactive mode off.
Not connected.... (1 Reply)
Hi ,
Can any one tell me is there any standard method to track errors during sftp ?
using which command i can track sftp errors ? i tried using echo $? .
Most of the times i am getting error number 127 ,1, 255. whether it is constant numbers ?
Please help me out. Thanks in advance (2 Replies)
Helo Experts,
I need a help in handling errors in shell script, wants my errors displayed in text file instead of command window..
My shell script is here;
cd /cygdrive/s/Files
for FILES in ./*.*
do
temp=`basename $FILES`
if cp $FILES /cygdrive/r/CopyFile1/$FILES; then
echo "copy... (5 Replies)
I have this segment of code :
cmd = "finger -m " $1 " 2>/dev/null | head -1"
cmd | getline userinfo
close(cmd)
Sometimes finger returns no such user when given a user id.
With the redirection to the default trash file i am getting rid of any screen "finger:no such user" messages.
I also want... (2 Replies)
Hi,
I need your guys help again. I run a script which check for some process status in a loop. when i check the process some of the process could throw an error, how can i check that inside my script.
Thanks,
RR (3 Replies)
I am writing a wrapper to one of the .ksh script. The wrapper script should capture the error/fatal(if any) and exit out of the script. Here is the script:
#!/bin/sh
. main_script.ksh <arg1> <arg2> > mainscript.log 2>&1
cnt=`grep 'ERROR' -c mainscript.log`
if ; then
echo "Error"
... (6 Replies)
I have a PERL command line embedded in a UNIX script. The script doesn't handle errors coming out of this command. I'm processing large files and occassionally I run out of disk space and end up with half a file.
perl -p -e 's/\n/\r\n/g' < TR_TMP_$4 > $4
How do I handle errors coming out... (1 Reply)
Below code works for different databases i.e. MYSQL and ORACLE
The problem is for MYSQL in Block: if ; $? taking value accordingly but in case of ORACLE $? is always taking this value as zero (0).
That is the reason in Oracle it always going in else Block in any case.. :(
and in case of ... (4 Replies)
Good Day Everyone,
I was hoping to get a little insight into an expect script that I've written.
Basically we have this expect script to perform an sftp upload, key authentication is not an option, and sftp is the only method supported by our vendor, thus the need for this.
I want to be... (3 Replies)
Hi Guys,
I got a csv with pipe delimted file and i want to check second column of the file has any alpha character becuase I am expecting only number in that,
and if any alpha characters then it should throw an error
Thanks in advance (1 Reply)
Discussion started by: Rizzu155
1 Replies
LEARN ABOUT OPENSOLARIS
frexpl
frexp(3M) Mathematical Library Functions frexp(3M)NAME
frexp, frexpf, frexpl - extract mantissa and exponent from a floating-point number
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double frexp(double num, int *exp);
float frexpf(float num, int *exp);
long double frexpl(long double num, int *exp);
DESCRIPTION
These functions break a floating-point number into a normalized fraction and an integral power of 2. They store the integer exponent in the
int object pointed to by exp.
RETURN VALUES
For finite arguments, these functions return the value x, such that x is a double with magnitude in the interval [1/2, 1) or 0, and num
equals x times 2 raised to the power *exp.
If num is NaN, NaN is returned and the value of *exp is unspecified.
If num is +- 0, +- 0 is returned and the value of *exp is 0.
If num is +-Inf, num is returned and the value of *exp is unspecified.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO isnan(3M), ldexp(3M), modf(3M), attributes(5), standards(5)SunOS 5.11 12 Jul 2006 frexp(3M)
08-10-2012
