Probably I am not seeing it or I am not using the "delete" correctly I had the following codes but it does not work for me
#!/bin/perl -w
...
@sysFile1 = (a_b, a_c, a_d);
@sysFile2 = (a_c, a_e, b_f);
foreach $line1 (@sysFile1){
trim(\$line1);
(my $tmp1, my $tmp2) = split/_/,... (6 Replies)
Hi,
I have learned some of the Unix commands a way back and not sure of how to code them when needed in certain way, especially sed command. Here is my situation. I have an xml file with several tags. most of the tags start on the same line and end on the same line. However, data for some tags... (8 Replies)
i want to delete the line which is not started with numeric in vim.
vim temp.txt
Volume in drive D is DATA
Volume Serial Number is 8C52-2055
Directory of D:\data\notes
02/16/2010 03:09 PM <DIR> .
02/16/2010 03:09 PM <DIR> ..
09/11/1999 03:03 AM ... (5 Replies)
How to delete last row in the file in PERL.
file1 has
a.output
b.output
c.output
d.output
e.output
expected output is
a.output
b.output
c.output
d.output (1 Reply)
Hi,
How to delete a file (if exists) using perl script.
I have used following script..
if ( -e $newfile) {
open (FILE, ">$newfile") || die "Cannot Open File\n";
print FILE;
close(FILE);
}
But it gives me error "Use of uninitialized value in print".
please help.
Thanks in... (1 Reply)
Hello All
I am implementing my task in Perl and i found an issue.
What i want to do is to remove files from the directory which were made 20 days back using Perl script (9 Replies)
im having an array @check which contains text ..i want to open the array and i have to delete lines starting from a word called "check1" till "check2"
for eg:-
check1 Use descriptive titles when posting. For example, do not post questions with subjects like "Help Me!", "Urgent!!" or "Doubt".... (0 Replies)
Hi all,
I need a Perl one liner which prints a newline into a .txt file, only where the line starts with "/mediawiki-1.19.0/". It should add the newline to the line before.
My problem is, when I try to realize this (with my little knowledge :rolleyes: ) i come to the point where the // are... (4 Replies)
Dear All,
could you please help me to remove \n characters after all other replacements have been done as in the code below:
{
#remove punctuation and starting whitespaces
gsub("]"," ");
$1=$1;
}
{
#print lines containing 'whatever'
if ($1=="whatever")
{print}
#print... (3 Replies)
I have a directory like below. Need help with Perl to delete all files under test1 except the one passed as parameters.The parameters will
always be the directories under test1 in the format below.
EX:
dir1/abc.txt,dir2/test.xml,dir3/dfb.txt,dir4/text.xml
test1
... (5 Replies)
Discussion started by: gaurav99
5 Replies
LEARN ABOUT LINUX
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS -raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO ppm(5)AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)