12-09-2008
Okie... Lemme check and come back... Thanks dude...
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1. Shell Programming and Scripting
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)
Discussion started by: mips
4 Replies
2. Shell Programming and Scripting
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 $counter + 1`
shift
done
but the error keeps... (1 Reply)
Discussion started by: scmay
1 Replies
3. Shell Programming and Scripting
i got a file called Marks
The format of Marks is:
12345678 5 7
23456789 7 9 3
What can i do with a loop, read expr and echo command to produce a new file like below:
12345678:12
23456789:20
and also when we adding fewer than 3 value with expr, we need to change any null value for... (13 Replies)
Discussion started by: mingming88
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4. Shell Programming and Scripting
Hi all,
i am facing the error "expr: non-numeric argument" when i use the expr command.
Following is the expression which i want to execute
HR=$(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)
Discussion started by: sparks
6 Replies
5. Shell Programming and Scripting
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)
Discussion started by: niasha
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6. Shell Programming and Scripting
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)
Discussion started by: ramkiran77
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7. Shell Programming and Scripting
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)
Discussion started by: Mallikgm
1 Replies
8. Shell Programming and Scripting
This is my code.... It works correct, but does not work with 4 and 5. My program is about finding average. so when i run 4 5 it gives me error "expr: non-integer argument".
But when i say sh average 45 67 it works. Whats wrong?how to fix it?
sum=0
n=0
if
then
for i in $*
do
if
... (2 Replies)
Discussion started by: Natalie
2 Replies
9. Shell Programming and Scripting
The username is of the format : 123456789110000-1234@something.com
With this below TCL procedure, I am trying add first and Sec Id and get third Id.
I checked in online compiler and it seems to work and add. However, when I am running this in my lab, I get error as "integer value too large to... (3 Replies)
Discussion started by: Shaibal_bp
3 Replies
10. Shell Programming and Scripting
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
Fatal(3pm) Perl Programmers Reference Guide Fatal(3pm)
NAME
Fatal - replace functions with equivalents which succeed or die
SYNOPSIS
use Fatal qw(open close);
sub juggle { . . . }
import Fatal 'juggle';
DESCRIPTION
"Fatal" provides a way to conveniently replace functions which normally return a false value when they fail with equivalents which raise
exceptions if they are not successful. This lets you use these functions without having to test their return values explicitly on each
call. Exceptions can be caught using "eval{}". See perlfunc and perlvar for details.
The do-or-die equivalents are set up simply by calling Fatal's "import" routine, passing it the names of the functions to be replaced. You
may wrap both user-defined functions and overridable CORE operators (except "exec", "system" which cannot be expressed via prototypes) in
this way.
If the symbol ":void" appears in the import list, then functions named later in that import list raise an exception only when these are
called in void context--that is, when their return values are ignored. For example
use Fatal qw/:void open close/;
# properly checked, so no exception raised on error
if(open(FH, "< /bogotic") {
warn "bogo file, dude: $!";
}
# not checked, so error raises an exception
close FH;
AUTHOR
Lionel.Cons@cern.ch
prototype updates by Ilya Zakharevich ilya@math.ohio-state.edu
perl v5.8.0 2002-06-01 Fatal(3pm)