11-30-2012
Again this topic has nothing to do in advanced... moving to "dummies"
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am writing a shell script that needs to remove duplicate lines within a file by category.
example:
section a
a
c
b
a
section b
a
b
a
c
I need to remove the duplicates within th category with out removing the duplicates from the 2 different sections (one of the a's in section... (1 Reply)
Discussion started by: RichElks
1 Replies
2. Shell Programming and Scripting
I have two files and need to compare the two files and to remove the matching lines from both the files (4 Replies)
Discussion started by: shellscripter
4 Replies
3. Shell Programming and Scripting
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Discussion started by: necroman08
3 Replies
4. Shell Programming and Scripting
Hi everyone
I have a dilemma and I'm hoping someone has an answer for me.
I have two files:
# cat masterfile
line3
line4
line5
line6
line7
# cat tempfile
line1
line2
line3
line4
I want to compare tempfile with masterfile. (3 Replies)
Discussion started by: soliberus
3 Replies
5. Shell Programming and Scripting
Hi all,
I'm a newbie and I'm sorry if my question is too simple.
I'm having problem to delete the files that have less than certain lines, say 16.
#!/bin/tcsh
set filen = `sh -c 'ls *csv 2> /dev/null'`
foreach fil (${filen})
if ]; then
rm -f ${filen}
fi
end
exit
... (2 Replies)
Discussion started by: GoldenFire
2 Replies
6. Shell Programming and Scripting
Have two files and want to compare the content of file1 with file2. When matched remove the line.
awk 'NR==FNR {b; next} !(b in $0)' file1 file2file1
1. if match
2. removefile2
1. this line has to be removed if match
2. this line has a match, remove
3. this line has no match, no removingThe... (3 Replies)
Discussion started by: sdf
3 Replies
7. Shell Programming and Scripting
Hello,
I need to run a command or shell script that will remove the last 3 lines from every .js file that is under the directory /var/ww/vhost/
Can you please help ?
thank you. (22 Replies)
Discussion started by: MaRiOsGR
22 Replies
8. Shell Programming and Scripting
Hi All, I have two files
file1
123456CRTGHG
125437CRNDGF
126537CRDDGF
file2
123456CRTZHC
124567CJHGHG
125987CJHGDF
I need to compare the two files and any records in file 1 and 2 based on initial n characters (6 in example) need to be ignored.
string separated by unprintable... (2 Replies)
Discussion started by: Bruble
2 Replies
9. Shell Programming and Scripting
I have two files, a keepout.txt and a database.csv. They're unsorted, but could be sorted.
keepout:
user1
buser3
anuser19
notheruser27
database:
user1,2343,"information about",field,blah,34
user2,4231,"mo info",etc,stuff,43
notheruser27,4344,"hiya",thing,more thing,423... (4 Replies)
Discussion started by: esoffron
4 Replies
10. Shell Programming and Scripting
I have two large files (~250GB) that I am trying to remove the where GT: 0/0 or 1/1 or 2/2 for both files. I was going to use a bash with the below awk, which I think will find each line but how do I remove that line is that condition is found? Thank you :).
Input
20 60055 . A ... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT DEBIAN
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)