This is my list of sed commands: can anyone tell me where im going wrong. The script works on a file called data which contains 6 student id's and there answers for 6 questions.
!/bin/sh
sed -e 's/*//g' \ #replace * with nothing
-e s/ /X/g' \ #replacing empty space with X
-e... (2 Replies)
hey programmers!
1-why won't gcc accept as an argument? i tried the recommendations on the man page of getch(),..etc. nothing worked.
2-why it won't see <iostream> && <fstream> even if i implemented the function as follow
std::cout<<"..etc"<<endl;
3-after i type this code in it gives... (6 Replies)
hello !
can so help me ? here is my problem :
a same command, using find command works on a server, but doesn't on another. I've been told, that it could be because of the file systems ... it's amazing ! can so explain, please ?
thank you for your answer (1 Reply)
As the title suggests, i am having some trouble figuring out how to pass spaces and carriage returns to a 'here document' ie
#!/bin/bash
/usr/local/install_script.sh <<SCRIPT
yes
no
<pass carriage retun here>
yes
no
<pass a space and then a carriage return here>
exit
SCRIPT
any... (0 Replies)
I typed:
echo "echo hi > at_log.txt" | at now +1minute
to test the at command on my terminal. I got the message:
job 8 at Thu Feb 25 18:42:00 2010
I waited for a minute but nothing happened. I tried listing at_log.txt, but it said there was no such file. Am I doing something... (2 Replies)
If I run:
find /somefolder -type f -size -7M | wc -l
I get 73594 files
But when I run
find /somefolder -type f -size -7M -exec /bin/cp -v {} /someotherfolder/ \;
it only copies 38891 of the files to the folder, why? There's a mix of all types of files in /somefolder. Is there some other... (12 Replies)
Hi! I'm sure that somebody here installed freeBSD from a download of a virtual disc (.iso). But I made 5 downloads of 5 differents freeBSD installation (and no one has worked).Can somebody tell me where to download and how (if needed) to prepare the cd? (8 Replies)
Hello,
Images won't work on UNIX when I try posting them on my website I'm working on. It doesn't show the image, and it's simply erroring.
Help! Thanks! (5 Replies)
I'm sure this has been answered before, but my searches have not turned up the right solution. :confused:
I need to remove files in a directory, without descending into subdirectories, older than n days. Some of the filenames contain spaces or other special characters:
E10403 (2)
E20402 (2)... (15 Replies)
Under one of my directories on server I have more than 500 files with different type and name. When I run the find command to list the files with 'ABC_DEFGH' in the begining of its name and older than 20 days, nothing is return as result. Though I know there are more than 400 files which their name... (10 Replies)
Discussion started by: Home
10 Replies
LEARN ABOUT NETBSD
sane-find-scanner
sane-find-scanner(1) SANE Scanner Access Now Easy sane-find-scanner(1)NAME
sane-find-scanner - find SCSI and USB scanners and their device files
SYNOPSIS
sane-find-scanner [-h|-?] [-v] [-q] [-p] [-f] [-F filename] [devname]
DESCRIPTION
sane-find-scanner is a command-line tool to find SCSI and USB scanners and determine their Unix device files. Its primary aim is to make
sure that scanners can be detected by SANE backends.
For SCSI scanners, it checks the default generic SCSI device files (e.g., /dev/sg0) and /dev/scanner. The test is done by sending a SCSI
inquiry command and looking for a device type of "scanner" or "processor" (some old HP scanners seem to send "processor"). So
sane-find-scanner will find any SCSI scanner connected to those default device files even if it isn't supported by any SANE backend.
For USB scanners, first the USB kernel scanner device files (e.g. /dev/usb/scanner0), /dev/usb/scanner, and /dev/usbscanner) are tested.
The files are opened and the vendor and device ids are determined, if the operating system supports this feature. Currently USB scanners
are only found this way if they are supported by the Linux scanner module or the FreeBSD or OpenBSD uscanner driver. After that test,
sane-find-scanner tries to scan for USB devices found by the USB library libusb (if available). There is no special USB class for scanners,
so the heuristics used to distinguish scanners from other USB devices is not perfect. sane-find-scanner also tries to find out the type of
USB chip used in the scanner. If detected, it will be printed after the vendor and product ids. sane-find-scanner will even find USB scan-
ners, that are not supported by any SANE backend.
sane-find-scanner won't find most parallel port scanners, or scanners connected to proprietary ports. Some parallel port scanners may be
detected by sane-find-scanner -p. At the time of writing this will only detect Mustek parallel port scanners.
OPTIONS -h, -? Prints a short usage message.
-v Verbose output. If used once, sane-find-scanner shows every device name and the test result. If used twice, SCSI inquiry informa-
tion and the USB device descriptors are also printed.
-q Be quiet. Print only the devices, no comments.
-p Probe parallel port scanners.
-f Force opening all explicitly given devices as SCSI and USB devices. That's useful if sane-find-scanner is wrong in determining the
device type.
-F filename
filename is a file that contains USB descriptors in the format of /proc/bus/usb/devices as used by Linux. sane-find-scanner tries
to identify the chipset(s) of all USB scanners found in such a file. This option is useful for developers when the output of "cat
/proc/bus/usb/devices" is available but the scanner itself isn't.
devname Test device file "devname". No other devices are checked if devname is given.
EXAMPLE
sane-find-scanner -v
Check all SCSI and USB devices for available scanners and print a line for every device file.
sane-find-scanner /dev/scanner
Look for a (SCSI) scanner only at /dev/scanner and print the result.
sane-find-scanner -p
Probe for parallel port scanners.
SEE ALSO sane(7), sane-scsi(5), sane-usb(5), scanimage(1), xscanimage(1), xsane(1), sane-"backendname"(5)
AUTHOR
Oliver Rauch, Henning Meier-Geinitz and others
SUPPORTED PLATFORMS
USB support is limited to Linux (kernel, libusb), FreeBSD (kernel, libusb), NetBSD (libusb), OpenBSD (kernel, libusb). Detecting the vendor
and device ids only works with Linux or libusb.
SCSI support is available on Irix, EMX, Linux, Next, AIX, Solaris, FreeBSD, NetBSD, OpenBSD, and HP-UX.
BUGS
No support for most parallel port scanners yet.
Detection of USB chipsets is limited to a few chipsets.
13 Jul 2008 sane-find-scanner(1)