07-11-2006
Quote:
Originally Posted by mugg
Goodness gracious. Please state everything known to man before I will provide an answer.
Simple answer for simple question. Try using chomp.
#!/usr/bin/perl
while (<>) {
$input = $_;
chomp($input);
$full = $input;
printf("%s;\n", $full);
}
Goodness gracious. Why don't you read what was posted. This guy has started 3 threads on the same topic. The substitution of the character is not his issue. He thinks that is his issue, but it isn't. See, goodness gracious? His problem is that he's not seeing what he wants at the end of a command in which he gets a string of characters that then is piped into netcat. Ah! guess you need to know something more than what was posted. Go back and read the original thread he posted, goodness gracious.
BTW, goodness gracious, what you posted is not the simple answer. It's about 6 lines too long.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi
i want to open a file at runtime
append few chars at the end of each line
all these i want to have done automatically
how to do it (2 Replies)
Discussion started by: trichyselva
2 Replies
2. Shell Programming and Scripting
Hello -
I have a file that has the something like the following :
REM CREATE TABLE lots of text
REM table specifc creation text ;
REM ALTER TABLE lots of text
REM text specific to the the alter command
REM could be more lines of text;
What I need is to get all the lines for the ALTER... (2 Replies)
Discussion started by: Feliz
2 Replies
3. Shell Programming and Scripting
Hey gang,
I have:
XXZZXXZZXX 123 asdaffggh dfghyrgr ertyhdhh XXZZXXZZXX 234 sdg XXZZXXZZXX 456 gfg fggfd
That is all on one line. Very simply put I want to do is something like:
sed s'/XXZZXXZZXX /\n/g'
or
tr 'XXZZXXZZXX ' '/n'
I have tried various things but can never get the desired... (6 Replies)
Discussion started by: crowman
6 Replies
4. Shell Programming and Scripting
I know this should be simple, but I've been manning sed awk grep and find and am stupidly stumped :(
I'm trying to use sed (or awk, find, etc) to find 4 characters on the second line of a file.txt 44-47 characters in. I can find lots of sed things for lines, but not characters. (4 Replies)
Discussion started by: unclecameron
4 Replies
5. Shell Programming and Scripting
Hi I'm new to sed, and need to add characters into a specific location of a file, the fileds are tab seperated.
text <tab> <tab> text <tab> text EOL
I need to add more characters to the line to look like this:
text <tab> <tab> newtext <tab> text <tab> text EOL
Any ideas? (2 Replies)
Discussion started by: tangentviper
2 Replies
6. Shell Programming and Scripting
Hello,
I am not a programmer, please be patient.
Actually, I have started to look into Perl because it seems to be able to solve all the problems (or most of them) I happen meet using my computer. These problems are generally all text-manipulation-related.
Although I started to study, I cannot... (6 Replies)
Discussion started by: ahsog
6 Replies
7. Shell Programming and Scripting
Hello,
I do not know why the output from these two methods differs. One method retains the newlines, the other method appears to ignore or lose the newlines.
Writing a file with the redirection operator:
egrep -e 'matchstring' infile.txt > outfile.txt
The resulting outfile.txt contains... (3 Replies)
Discussion started by: duderonomy
3 Replies
8. Shell Programming and Scripting
hi all , i have a requirement like this..
this just a sample script...
$ cat test.sh
#!/bin/bash
perl -e '
open(IN,"addrss");
open(out,">>addrss");
@newval;
while (<IN>)
{
@col_val=split(/:/);
if ($.==1)
{
for($i=0;$i<=$#col_val;$i++)
{
... (2 Replies)
Discussion started by: tprayush
2 Replies
9. Shell Programming and Scripting
Dear All,
I want search two lines and append some string in between these lines.
Input file
tmp,123
,10:123
tmp,666
,50:999
tmp,2:19800
5,3:21.
tmp,2:19800
55555555
tmp,2:19800
5,3:21.Output should be
tmp,123
,10:123
tmp,666
,50:999
tmp,2:19800 (4 Replies)
Discussion started by: arvindng
4 Replies
10. UNIX for Dummies Questions & Answers
I have a file that includes strings with special characters, eg
file1
line: 1 - special 1
line: = 4
line; -3
etc
How can I grep the lines of file1 from file2, line by line?
I used fgrep and egrep to grep a particular line and worked fine, but when I used:
cat file1|while read line;do... (2 Replies)
Discussion started by: FelipeAd
2 Replies
RRDp(3) User Contributed Perl Documentation RRDp(3)
NAME
RRDp - Attach RRDtool from within a perl script via a set of pipes;
SYNOPSIS
use RRDp
RRDp::start path to RRDtool executable
RRDp::cmd rrdtool commandline
$answer = RRD::read
$status = RRD::end
$RRDp::user, $RRDp::sys, $RRDp::real, $RRDp::error_mode, $RRDp::error
DESCRIPTION
With this module you can safely communicate with the RRDtool.
After every RRDp::cmd you have to issue an RRDp::read command to get RRDtools answer to your command. The answer is returned as a pointer,
in order to speed things up. If the last command did not return any data, RRDp::read will return an undefined variable.
If you import the PERFORMANCE variables into your namespace, you can access RRDtool's internal performance measurements.
use RRDp
Load the RRDp::pipe module.
RRDp::start path to RRDtool executable
start RRDtool. The argument must be the path to the RRDtool executable
RRDp::cmd rrdtool commandline
pass commands on to RRDtool. Check the RRDtool documentation for more info on the RRDtool commands.
Note: Due to design limitations, RRDp::cmd does not support the "graph -" command - use "graphv -" instead.
$answer = RRDp::read
read RRDtool's response to your command. Note that the $answer variable will only contain a pointer to the returned data. The
reason for this is, that RRDtool can potentially return quite excessive amounts of data and we don't want to copy this around in
memory. So when you want to access the contents of $answer you have to use $$answer which dereferences the variable.
$status = RRDp::end
terminates RRDtool and returns RRDtool's status ...
$RRDp::user, $RRDp::sys, $RRDp::real
these variables will contain totals of the user time, system time and real time as seen by RRDtool. User time is the time RRDtool
is running, System time is the time spend in system calls and real time is the total time RRDtool has been running.
The difference between user + system and real is the time spent waiting for things like the hard disk and new input from the Perl
script.
$RRDp::error_mode and $RRDp::error
If you set the variable $RRDp::error_mode to the value 'catch' before you run RRDp::read a potential ERROR message will not cause
the program to abort but will be returned in this variable. If no error occurs the variable will be empty.
$RRDp::error_mode = 'catch';
RRDp::cmd qw(info file.rrd);
print $RRDp::error if $RRDp::error;
EXAMPLE
use RRDp;
RRDp::start "/usr/local/bin/rrdtool";
RRDp::cmd qw(create demo.rrd --step 100
DS:in:GAUGE:100:U:U
RRA:AVERAGE:0.5:1:10);
$answer = RRDp::read;
print $$answer;
($usertime,$systemtime,$realtime) = ($RRDp::user,$RRDp::sys,$RRDp::real);
SEE ALSO
For more information on how to use RRDtool, check the manpages.
AUTHOR
Tobias Oetiker <tobi@oetiker.ch>
perl v5.16.3 2014-06-10 RRDp(3)