10 More Discussions You Might Find Interesting
1. Solaris
i need to know the difference between two commands
ps -ef|grep oracle
ps -ef|grep -v grep |grep oracle (1 Reply)
Discussion started by: smazshah
1 Replies
2. Shell Programming and Scripting
Hi all I want to make sure I was understanding this correctly
if a cron job command was
* */20 * * * command
does that mean this command will run every 20 hours?
also what is the difference between the following two?
0,20,40 * * * * command
20 * * * * command
I believe the first... (3 Replies)
Discussion started by: subway69
3 Replies
3. AIX
Hi all,
I'm new in this forum.
I'm looking for the difference between the HACMP commands with the prefix "cl" and "cli".
The first type are under /usr/es/sbin/cluster/sbin directory and the second are under /usr/es/sbin/cluster/cspoc directory.
I know that the first are called HACMP for AIX... (0 Replies)
Discussion started by: peppix
0 Replies
4. Solaris
Looking at the performance hit on my server, does it matter wich command I run?
client # rsh server tar –cf - . | tar –cv –f –
or
server # tar –cf – . | rsh client ‘cd target && tar –xv -f –‘
I think it doesn't really matter because both command strings involve a tar being run on... (4 Replies)
Discussion started by: petervg
4 Replies
5. Shell Programming and Scripting
Hi,
I need to know the difference between this commands:
grep * *search*
grep "*" *search*
As far as i know does the 2nd command search for files which have a name with *search* and greps then all which have chars from a-z in the file content.
But was does the first command??
Best... (1 Reply)
Discussion started by: xus
1 Replies
6. UNIX for Dummies Questions & Answers
Hello! I'm just learning the shell, and I would really like to know how to do this:
Given these 2 commands:
ls -l
ls -le
How can I, with a one-liner, ask the shell to show me visually in the shell, what the difference is between the output of the two commands? They look the same to me... (6 Replies)
Discussion started by: turbofayce
6 Replies
7. Shell Programming and Scripting
Good morning!
What is the difference between:
ssh-keygen -t rsa
and
ssh-keygen -b 2048 -t rsa?
Thanks
Bigben (2 Replies)
Discussion started by: bigben1220
2 Replies
8. UNIX for Dummies Questions & Answers
Hello All, I have a question about the difference between two commands. I am using Korn and was told by the Unix admin that 'nohup <command> &'
equals 'nohup ./<command> &. That there is no difference betwewen the two. Is this true? Also, does the command './<command> &' provide a disconnect... (4 Replies)
Discussion started by: grin1dan
4 Replies
9. Solaris
Hi,
I would like to know what is the difference between executing the mount command in the following ways...
eg:
/usr/sbin/mount -F <something>
AND
mount -F <something>
I mean , just executing the mount command as opposed to specifying the path and then executing it?
... (3 Replies)
Discussion started by: wrapster
3 Replies
10. UNIX for Dummies Questions & Answers
shouldn't they give the same output?
echo `echo \`date\``
is the same as the command date
echo `echo date`
prints the word date
thanks! (3 Replies)
Discussion started by: kfad
3 Replies
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)