10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Today I needed to take a look through a load of large backup files, so I wrote the following line to find them, order them by size, and print the file sizes in GB along with the filename. What happened was odd, the output was all as expected except for the first output line which had the filename... (4 Replies)
Discussion started by: gencon
4 Replies
2. Shell Programming and Scripting
Hi,
I'm new to sh scripting and have the following problem. I have a script to sftp that is now working with ssh key. But i need to change this, i wan't to sftp with a password. I have the following script, tried a lot to make a variabel for the password. But i can't make it work
... (2 Replies)
Discussion started by: kvhindex
2 Replies
3. Homework & Coursework Questions
Hey guys. I'm very new to Unix. I'm pretty fluent in Java and C, but I have never actually used Unix for anything. I am in an Operating Systems course now and I have an assignment to write a piece of code that involves forks and piping. I'm stuck.
1. The problem statement, all variables and... (6 Replies)
Discussion started by: itsjimmy91
6 Replies
4. Shell Programming and Scripting
hi All,
I am using the command
find /home/mqm/check/ -mtime +1|wc -l
to get a count of the files older than a day under the check directory. But instead of getting the count of the files under check directory I m getting a count including the check directory itself. Can someone please tell... (0 Replies)
Discussion started by: jayii
0 Replies
5. Shell Programming and Scripting
I'm trying to pipe the output from a command into another using xargs but is not getting what I want. Running this commands:
find . -name '33_cr*.rod' | xargs -n1 -t -i cut -f5 {} | sort -k1.3n | uniq | wc -l
give the following output:
cut -f5 ./33_cr22.rod
cut -f5 ./33_cr22.rod
...
9224236... (7 Replies)
Discussion started by: ivpz
7 Replies
6. Shell Programming and Scripting
Hello everybody,
I need some help here. I have a log file that gets updated every hour approximately.
I want to make some processing on each line which is added in the log file with a program written in PERL.
The problem is that I don't see anything when a line is added in the log file.
I... (6 Replies)
Discussion started by: Samb95
6 Replies
7. AIX
Generally, most people, I guess, go from 5.3 ML4 Directly to TL 7. So they may never run into this issue.
For the rest of us, here is the resolution of my problem in going from ML6 to TL7.
Apparently with the change from ML to TL IBM added a "BuildDate Verification" routine into... (1 Reply)
Discussion started by: mrmurdock
1 Replies
8. Shell Programming and Scripting
Hi friends
I have a zip file 1.zip which contains three text files a.txt b.txt c.txt
I want to grep some text(keyword) in those 3 files without extracting all the three files to a local directoryusing the command,
unzip -p 1.zip |grep "search text" >result.txt
The Output file is... (2 Replies)
Discussion started by: ks_reddy
2 Replies
9. Shell Programming and Scripting
I am trying to have a script run without interaction from the command line. So in my script i have a line like this
echo -e "\n\n\ny\ny\n" | ./script
the goal being the ability to mimic 3 Enter presses and 2 'y/n' responses with 'y' followed by enter.
For some reason tho, it is not... (1 Reply)
Discussion started by: mcdef
1 Replies
10. Shell Programming and Scripting
i am writing a script to perform some mysqldumps and gzip them. The problem I am running into is that if the user specifies a database that doesn't exist, the error the mysql engine produces is still piped into gzip, and the exit code returned is 0. If I don't pipe into gzip, an exit code... (4 Replies)
Discussion started by: bitoffish
4 Replies
USB_MATCH_ID(9) USB Core APIs USB_MATCH_ID(9)
NAME
usb_match_id - find first usb_device_id matching device or interface
SYNOPSIS
const struct usb_device_id * usb_match_id(struct usb_interface * interface, const struct usb_device_id * id);
ARGUMENTS
interface
the interface of interest
id
array of usb_device_id structures, terminated by zero entry
DESCRIPTION
usb_match_id searches an array of usb_device_id's and returns the first one matching the device or interface, or null. This is used when
binding (or rebinding) a driver to an interface. Most USB device drivers will use this indirectly, through the usb core, but some layered
driver frameworks use it directly. These device tables are exported with MODULE_DEVICE_TABLE, through modutils, to support the driver
loading functionality of USB hotplugging.
WHAT MATCHES
The "match_flags" element in a usb_device_id controls which members are used. If the corresponding bit is set, the value in the device_id
must match its corresponding member in the device or interface descriptor, or else the device_id does not match.
"driver_info" is normally used only by device drivers, but you can create a wildcard "matches anything" usb_device_id as a driver's
"modules.usbmap" entry if you provide an id with only a nonzero "driver_info" field. If you do this, the USB device driver's probe routine
should use additional intelligence to decide whether to bind to the specified interface.
WHAT MAKES GOOD USB_DEVICE_ID TABLES
The match algorithm is very simple, so that intelligence in driver selection must come from smart driver id records. Unless you have good
reasons to use another selection policy, provide match elements only in related groups, and order match specifiers from specific to
general. Use the macros provided for that purpose if you can.
The most specific match specifiers use device descriptor data. These are commonly used with product-specific matches; the USB_DEVICE macro
lets you provide vendor and product IDs, and you can also match against ranges of product revisions. These are widely used for devices with
application or vendor specific bDeviceClass values.
Matches based on device class/subclass/protocol specifications are slightly more general; use the USB_DEVICE_INFO macro, or its siblings.
These are used with single-function devices where bDeviceClass doesn't specify that each interface has its own class.
Matches based on interface class/subclass/protocol are the most general; they let drivers bind to any interface on a multiple-function
device. Use the USB_INTERFACE_INFO macro, or its siblings, to match class-per-interface style devices (as recorded in bInterfaceClass).
Note that an entry created by USB_INTERFACE_INFO won't match any interface if the device class is set to Vendor-Specific. This is
deliberate; according to the USB spec the meanings of the interface class/subclass/protocol for these devices are also vendor-specific, and
hence matching against a standard product class wouldn't work anyway. If you really want to use an interface-based match for such a device,
create a match record that also specifies the vendor ID. (Unforunately there isn't a standard macro for creating records like this.)
Within those groups, remember that not all combinations are meaningful. For example, don't give a product version range without vendor and
product IDs; or specify a protocol without its associated class and subclass.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 USB_MATCH_ID(9)