05-22-2010
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello again !
Thanks for response of my first question. there is my second quesiton why i have local.profile instead of .profile file ?
my all files in pwd shoes local. before any file.
is anybody can tell me about that ?
Thanks
Abid Malik (5 Replies)
Discussion started by: abidmalik
5 Replies
2. UNIX for Dummies Questions & Answers
Dear Guys ,
Please again , i could not find a solution for my server linux red hat 9 .
when i leave it about more than 5 min ideal it goes to something like sleep mode and all services stop and even TCP/IP .. what shall i do ???
another thing please , when i installed the server , i gave... (3 Replies)
Discussion started by: tamemi
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3. IP Networking
Are there any free local proxy for Linux which cache data and gzip transmitted packages? (5 Replies)
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4. Linux
Hi
Hope someone can help, i have no knowledge of Linux but have aquired a script that i am trying to modify to run in an Altiris environment.
The script is a bash menu that runs via a linux pxe boot option.
when i run the script i get an error saying
syntax error near unexpected token... (1 Reply)
Discussion started by: stewfo
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5. UNIX for Dummies Questions & Answers
how can i find my own ip address from unix. command like who -x .this would provide all the ip address but i need to list only current user ip address. who am i command does not display the ip. (1 Reply)
Discussion started by: naushad
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6. AIX
Hi Friends,
I have this script for ftping files from AIX server to local windows xp.
#!/bin/sh
HOST='localsystem.net'
USER='myid_onlocal'
PASSWD='mypwd_onlocal'
FILE='file.txt' ##This is a file on server(AIX)
ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
put $FILE... (1 Reply)
Discussion started by: rajsharma
1 Replies
7. IP Networking
I have two PCs, witch have Linux Ubuntu.
I want to connect those computers by a local network, but I know right anything about the network.
I have a modem (not router) and a router that i don't use.
The desktop pc have 2 network cards. (eth0 eth1). The modem is on eth1.
Anyone help me!... (4 Replies)
Discussion started by: mghis
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8. UNIX for Dummies Questions & Answers
How to fetch only local user without duplication from /etc/passwd using scripting?? (4 Replies)
Discussion started by: AhmedLakadkutta
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9. Shell Programming and Scripting
I need to run a local shell script on a remote machine. I am able to achieve that by executing the command
> ssh -qtt user@host < test.sh
However, when I try to pass arguments to test.sh it fails.
Any pointers would be appreciated. (7 Replies)
Discussion started by: Sree10
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10. IP Networking
I am trying to install a replacement mail server. On the old machine,
nslookup example.com returns 192.168.100.5 instead of its real ip of 207.139......
On the new machine, which I have presumably set up the same way; I compared the data in the gui dnsconfig on both machines, I get an error... (0 Replies)
Discussion started by: jgt
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LEARN ABOUT REDHAT
pbmreduce
pbmreduce(1) General Commands Manual pbmreduce(1)
NAME
pbmreduce - read a portable bitmap and reduce it N times
SYNOPSIS
pbmreduce [-floyd|-fs|-threshold ] [-value val] N [pbmfile]
DESCRIPTION
Reads a portable bitmap as input. Reduces it by a factor of N, and produces a portable bitmap as output.
pbmreduce duplicates a lot of the functionality of pgmtopbm; you could do something like pnmscale | pgmtopbm, but pbmreduce is a lot
faster.
pbmreduce can be used to "re-halftone" an image. Let's say you have a scanner that only produces black&white, not grayscale, and it does a
terrible job of halftoning (most b&w scanners fit this description). One way to fix the halftoning is to scan at the highest possible res-
olution, say 300 dpi, and then reduce by a factor of three or so using pbmreduce. You can even correct the brightness of an image, by
using the -value flag.
OPTIONS
By default, the halftoning after the reduction is done via boustrophedonic Floyd-Steinberg error diffusion; however, the -threshold flag
can be used to specify simple thresholding. This gives better results when reducing line drawings.
The -value flag alters the thresholding value for all quantizations. It should be a real number between 0 and 1. Above 0.5 means darker
images; below 0.5 means lighter.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
pnmenlarge(1), pnmscale(1), pgmtopbm(1), pbm(5)
AUTHOR
Copyright (C) 1988 by Jef Poskanzer.
02 August 1989 pbmreduce(1)