01-03-2002
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
The question is , as the topic says, how does one save macros for VIM in the .vimrc.
I had a look on web and it gave all this ****** about how to build turing machines in vim code or something but i just want to store a macro to like :
if(){
}
I know how to do it IN vim but .vimrc??????!?!?!... (3 Replies)
Discussion started by: yngwie
3 Replies
2. Programming
The following is taken from some production code:
#ifdef LOCK_LOCKF
#ifdef HAVE_SYS_FILE_H
#include <sys/lockf.h>
#endif
#ifdef HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#define LOCK(file) fseek(file, 0L, 0), lockf(file, 1, 0L)
#define UNLOCK(file) fseek(file, 0L, 0),... (2 Replies)
Discussion started by: frequency8
2 Replies
3. Programming
This might be poorly worded.
In the header file, I have
#ifdef LOCK_FCNTL
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#define LOCK(file) setlock(fileno(file), F_WRLCK);
#define UNLOCK(file) setlock(fileno(file), F_UNLCK);
#endif /* LOCK_FCNTL */
#ifdef LOCK_FLOCK
#ifdef... (1 Reply)
Discussion started by: frequency8
1 Replies
4. Shell Programming and Scripting
Hey people!
I just started out working at an ISP as tech support and thought that I should ease the work load by scripting some small macros.
I create different commands with Alias through .bashrc which are all directed to the same script file. Here I planned on using Expect to run different... (0 Replies)
Discussion started by: GhettoFish
0 Replies
5. UNIX for Dummies Questions & Answers
I want to build a Makefile that simply takes a template file and modifies it (sed or perl, probably) before installing the result in the right place - my problem is creating the variable for substitution...
So I have
SYSTEM = SYS1 SYS2
SYS1_CHANNELS = CHANNEL1 CHANNEL2 CHANNEL4... (1 Reply)
Discussion started by: JerryHone
1 Replies
6. UNIX for Dummies Questions & Answers
Hi, does anyone knows how to give the page feed command to Printer in troff.
Actually I want to implement the functionality where I'll print say 10 pages and I want user to stop printer at 5th page to do manual feed by user .... (2 Replies)
Discussion started by: dpmore
2 Replies
7. Linux
Masters,
I am trying to learn the serial mouse driver for linux kernel. On the kernel source tree I find out these macros and I am unable to find out the meaning of these macros. Please anyone help me to understand these.
These macros are defined in linux/serio.h... (2 Replies)
Discussion started by: iamjayanth
2 Replies
8. UNIX for Advanced & Expert Users
Hi,
I've some existing scripts wherein am using ftp + .netrc. I've defined my macros in .netrc file.
I want to switch to sftp now but it seems it doesn't support macros and .netrc and it gives "command invalid" error.
Is there any other alternative?
Note: I don't want help for... (1 Reply)
Discussion started by: ps51517
1 Replies
9. Programming
I have a PORT_NUM macro (10 digits long number)
in a server file, if i do
htons(PORT_NUM)
i get
warning: this decimal constant is unsigned only in ISO C90
warning: large integer implicitly truncated to unsigned type
whats wrong with this? (2 Replies)
Discussion started by: omega666
2 Replies
10. Shell Programming and Scripting
Hi, all
I just came to new system with RH, and it has alot of macros I was told to use, but I can't find how to open it for display or for edit, can you help me please, is it all about make/makefile?
let say I have macro <trx> like this, that does a lot of things:
>$ trx
... creating new... (1 Reply)
Discussion started by: trento17
1 Replies
LEARN ABOUT XFREE86
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)