Hi,
No need to say I'm new to unix shell scripting.
I have a very simple script that goes this way:
for datos in `ls -rt $UNXLOG/26-Jan*`
do
export arch=`echo $datos |cut -d, -f1`
if
then
export linea1=`grep Debut ${arch}`
export horatot=`echo $linea1 |cut -d' ' -f5`
... (7 Replies)
Hi
I am doing a script like
if
then
echo "table name dosent exist"
exit
fi
the problem is if $table_name is null then i am getting the error
Please help me
Thanks in advance (2 Replies)
Hi All,
I am new to shell scripting and right now I am just limited to using the pre-written scripts. I am in to Infrastructure management where we use different scripts to get the information passed on to the monitoring tools. I am trying to use this script to get the information about the... (2 Replies)
hi
i am trying to compare a value with value 50. but i am getting
"
I am using
if
then
echo "------------"
fi
please help
thanks in advance
Satya (2 Replies)
Greetings, using ksh on Solaris, I am trying to identify the current version of a package installed on multiple servers using if statement in a precursor to upgrading.
I have searched the forums and have found many hits, reviewed 3 pages and have tried the different variations noted there. Also... (3 Replies)
find . -name "*.*"|xargs grep WT:DBF_WL>> $F
Wfexist=`cat $F|grep $i`
echo $Wfexist
if ;
then
echo $Wfexist
echo "Workflow Exist"
else
touch $O
chmod 777 $O
echo $Wfexist
echo $WfExist >> $O
fi
I am getting the error that -ne: unary operator expected in the line with red... (2 Replies)
Why am I getting this error.... #!/bin/sh
# iOS-Ad-Remover
# Marshall Ford @ marshallbford@gmail.com
# This project is hosted @ http://ios-ad-
# remover.sourceforge.net
# Under the GNU GPL open source license
clear
echo
if ; then echo "You need to be root to run this script."; exit 0; #... (24 Replies)
Hi
I have problem with my script.
I dont now why but i don't change anything and script stop working.
this is my code:
#!/bin/sh
for i in `ps -A | grep pocron.sh | grep -v grep | awk '{print $2}'`
do
COUNT=$((COUNT+1))
done
ostatnie_wykonanie=`cat porader.log`... (1 Reply)
Hi All,
I'm assigning a numeric value to variable count=2, well its being assigned by code above the if condition.
I want to test for 2 conditions , when $count = 0 or $count <=2 and do something when the condition matches. here is my code, but i run into the infamous :
if ]
then
... (2 Replies)
In all my Googling, this usually happens when someone is comparing a variable, and that variable is unset. That doesn't appear to be the case for me...
#!/bin/bash -x
while read line
do
f=$(echo $line | tr -s ' ' | cut -d' ' -f 3)
echo $f
if
then
echo "This... (2 Replies)
Discussion started by: jnojr
2 Replies
LEARN ABOUT SUSE
xs::apitest::keywordrpn
XS::APItest::KeywordRPN(3pm) Perl Programmers Reference Guide XS::APItest::KeywordRPN(3pm)NAME
XS::APItest::KeywordRPN - write arithmetic expressions in RPN
SYNOPSIS
use XS::APItest::KeywordRPN qw(rpn calcrpn);
$triangle = rpn($n $n 1 + * 2 /);
calcrpn $triangle { $n $n 1 + * 2 / }
DESCRIPTION
This module supplies plugged-in keywords, using the new mechanism in Perl 5.11.2, that allow arithmetic to be expressed in reverse Polish
notation, in an otherwise Perl program. This module has serious limitations and is not intended for real use: its purpose is only to test
the keyword plugin mechanism. For that purpose it is part of the Perl core source distribution, and is not meant to be installed.
RPN expression syntax
Tokens of an RPN expression may be separated by whitespace, but such separation is usually not required. It is required only where
unseparated tokens would look like a longer token. For example, "12 34 +" can be written as "12 34+", but not as "1234 +".
An RPN expression may be any of:
1234
A sequence of digits is an unsigned decimal literal number.
$foo
An alphanumeric name preceded by dollar sign refers to a Perl scalar variable. Only variables declared with "my" or "state" are
supported. If the variable's value is not a native integer, it will be converted to an integer, by Perl's usual mechanisms, at the
time it is evaluated.
A B "+"
Sum of A and B.
A B "-"
Difference of A and B, the result of subtracting B from A.
A B "*"
Product of A and B.
A B "/"
Quotient when A is divided by B, rounded towards zero. Division by zero generates an exception.
A B "%"
Remainder when A is divided by B with the quotient rounded towards zero. Division by zero generates an exception.
Because the arithmetic operators all have fixed arity and are postfixed, there is no need for operator precedence, nor for a grouping
operator to override precedence. This is half of the point of RPN.
An RPN expression can also be interpreted in another way, as a sequence of operations on a stack, one operation per token. A literal or
variable token pushes a value onto the stack. A binary operator pulls two items off the stack, performs a calculation with them, and
pushes the result back onto the stack. The stack starts out empty, and at the end of the expression there must be exactly one value left
on the stack.
OPERATORS
These are the operators being added to the Perl language.
rpn(EXPRESSION)
This construct is a Perl expression. EXPRESSION must be an RPN arithmetic expression, as described above. The RPN expression is
evaluated, and its value is returned as the value of the Perl expression.
calcrpn VARIABLE { EXPRESSION }
This construct is a complete Perl statement. (No semicolon should follow the closing brace.) VARIABLE must be a Perl scalar "my"
variable, and EXPRESSION must be an RPN arithmetic expression as described above. The RPN expression is evaluated, and its value is
assigned to the variable.
BUGS
This module only performs arithmetic on native integers, and only a small subset of the arithmetic operations that Perl offers. This is
due to it being intended only for demonstration and test purposes.
The RPN parser is liable to leak memory when a parse error occurs. It doesn't leak on success, however.
SEE ALSO
Devel::Declare, "PL_keyword_plugin" in perlapi
AUTHOR
Andrew Main (Zefram) <zefram@fysh.org>
COPYRIGHT
Copyright (C) 2009 Andrew Main (Zefram) <zefram@fysh.org>
LICENSE
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.1 2010-05-13 XS::APItest::KeywordRPN(3pm)