05-27-2015
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1. UNIX for Dummies Questions & Answers
Hello!
I want to evaluate some mathematical expressions in a script and I try to use 'expr' command.
Unfortunatally, when I have, for example,
expr 8.2 + 6
the result is 'expr: non-numeric argument'
Why ?
I work on SunOs 5.7.
Thanks in advance
Nathe (5 Replies)
Discussion started by: Nathe
5 Replies
2. Shell Programming and Scripting
Hi,
in my ksh script
expr 22 / 10 results as 2
but the actual result expected in 2.2.
how do i get that result. Please help
Thanks, (2 Replies)
Discussion started by: kotasateesh
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3. Shell Programming and Scripting
sum=0;
cat op_api2 |while read word1 word2;
do
echo $word2
sum=`expr $word2 + $sum`;
done
echo $sum
op_api2 ( file has this data )
----------------------------
UsageSummary 1034
UsageSummary 1675
UnbilledUsage 175
UnbilledUsage 177
UnbilledUsage 177
UnbilledUsage 194
I want the... (2 Replies)
Discussion started by: bishweshwar
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4. Red Hat
i am new to shell programming, currently using redhat linux of version
2.4.20-8.
i have problem in executing expr command in the following shell script
$ x=5
$ x='expr $x + 1'
$ echo $x
the output is displaying always
expr $x + 1
Pls guide me for the above query (3 Replies)
Discussion started by: saikumarm80
3 Replies
5. Shell Programming and Scripting
What is the difference between test expr VS .
For example :
if test 5 -eq 6
echo "Wrong"
and
if
echo "Wrong"
bot will give the same output as Wrong.
Now, what is the difference between these two? though they are producing the same result why we need two?
Any answer will be... (2 Replies)
Discussion started by: ashok.g
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6. Shell Programming and Scripting
I'm trying to check if a variable'd string is only one character and use that in an if statement the only way I could find is:
$expr "${var}" : . # expr STRING : regrep
where the "." is the grep wildcard for any single character.
Whats wrong with my code here and is there a... (3 Replies)
Discussion started by: Tewg
3 Replies
7. Shell Programming and Scripting
$ cat > mtable
#!/bin/sh
#
#Script to test for loop
#
#
if
then
echo "Error - Number missing form command line argument"
echo "Syntax : $0 number"
echo "Use to print multiplication table for given number"
exit 1
fi
n=$1
for i in 1 2 3 4 5 6 7 8 9 10
do
echo "$n * $i = `expr $i \*... (1 Reply)
Discussion started by: jackel7777
1 Replies
8. UNIX for Dummies Questions & Answers
Hey there
i want to subtract the content from $b from $a. Each variable has got 18 values (normal numbers from 0 - 99).
How can i subtract them? I know i have to use the expr command, this is what i have till now:
a=`cat Tabelle.dat | awk {'print $4'} | awk -F: {'print $1'}`
b=`cat... (1 Reply)
Discussion started by: Mad van Bert
1 Replies
9. Shell Programming and Scripting
Hi All,
I'm writing a shell script in KSH, where I want to store the filename, total record count and actual record count of all the source files. The source files reside in 4 different sub-folders under the same root folder.
Below is code:
#!/usr/bin/ksh... (6 Replies)
Discussion started by: jagari
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10. Shell Programming and Scripting
Hi
I have bellow script:
t1=`cat node1.txt | grep thread1 | cut -f2 -d '-'`
t2=`cat node2.txt | grep thread2 | cut -f2 -d '-'`
t3=`cat node1_rcat.txt | grep thread1 | cut -f2 -d '-'`
t4=`cat node2_rcat.txt | grep thread2 | cut -f2 -d '-'`
if ]; then
echo "no restore" >> log.log... (6 Replies)
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LEARN ABOUT DEBIAN
tessrun
TESSRUN(1) TESSRUN(1)
NAME
tessrun - convenience script for running TESS scripts en masse
SYNOPSIS
tessrun [ -h ] [ -l ] [ -l ] [ application [ args ...] ]
DESCRIPTION
The tessrun script is part of TESS, the (Te)st (S)ystem for (S)-Lang. It is intended to simplify the invocation, typically within a Make-
file, of TESS-based automated regression suites. Each test in the current directory (marked by a .t suffix) will be automatically loaded
into the S-Lang interpreter (within slsh, by default) and executed.
tessrun returns 1 if any tests fail, otherwise 0.
OPTIONS
-h Output this short help text.
-l Supports local execution of examples (before install).
-v Verbose mode.
application [ args ...]
Replace the use of slsh with the given application, and optional arguments.
AUTHOR
The author of TESS is Michael S. Noble <mnoble@space.mit.edu>. Rafael Laboissiere <rafael@debian.org> created the TESS package for Debian
and helped author this manual page.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any
later version published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL
SEE ALSO
On Debian systems the reference manual for TESS can be found at /usr/share/doc/slang-tess/tess.txt.gz. It is also packaged in text and
PDF forms in the source distribution.
02 November 2005 TESSRUN(1)