Does anybody have an explanation for the following:
The following scripts runs fine on IRIX64 6.5 but has bugs on Solaris 8.
#! /bin/sh
echo run only on an SGI machine
echo type in linenumber
read j
echo value
read value
awk -f rmspass2 level=$value $j'step1.mlf'
When the script is... (5 Replies)
Hi
I have a unix shell script with an awk statement. I would like to print some of the fields of an input file. However, I would like to print them dynamically, ie by passing the literal $1 $3 into the script to define the output.
I have tried the following:
variable1='$1'
awk... (2 Replies)
I am trying to pass the results from a variable gathered from awk, however when I echo the 'PARSE' and 'SUB', the response is blank. This is my command.
awk -F= '/Unit/''{ PARSE=substr($2,1,5) ; SUB=substr($2,1,1) }' inputfile.lst
Is this a kind of valid attempt or am I obligated to declare... (3 Replies)
Hi,
How to pass space seprated variables in awk. (HP-UX, sh shell)
I have the problem like below:
var="Hello"
var2="Manu Batham"
echo $var2 | awk -v variable=${var} '{ printf "%s %s", variable, $1}'
and its output is:
Hello Manu
while output should be:
Hello Manu Batham
Please... (4 Replies)
Hi.
I need to parse file and assign some values to variables, right now i do like below
MYHOMEDIR=`awk '/Home/ {print $NF}' output.txt`
MYSHELL=`awk '/Shell/ {print $NF}' output.txt`
PRGRP=`awk '/Primary/ {print $NF}' output.txt`
SECGRP=`awk '/Second/ {print $NF}' output.txt`
In this... (10 Replies)
Using ksh to call a function which has awk script embedded.
It parses a long two element list file, filled with text numbers (I want column 2, beginning no sooner than line 45, that's the only known thing) . It's unknown where to start or end the data collection, dynamic variables will be used. ... (1 Reply)
Hi all,
I am wanting to pass variables from a file to an awk arithmetic formula.
When I use the formula with the value it works well. As soon as I make these variables I get an inf (infinity) response. I can certainly echo the variables back and they look correct. My googling for answers has... (3 Replies)
Hi guys,
I need to fetch data from logfile between two given dates,i got the below code from our forum.It works perfect,but i need to enter the value dynamically to awk while running.
awk '/2012 Jun/{p=1}!/2012 Jul/ && prev~/2012 Jul/ && p{p=0}{prev=$0}p' file
i tried the below code,but... (4 Replies)
Am looking to pass some Linux environment variables into AWK , can I simply use the -v option ?
awk -F: -v AHOME=$HOME '{ if
{rm AHOME/file.txt
a=2 } }'
config.txt
... (4 Replies)
Discussion started by: alldbest
4 Replies
LEARN ABOUT MOJAVE
english
English(3pm) Perl Programmers Reference Guide English(3pm)NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)