I am trying to check two variables and if both are blank I want to set a flag:
the_f3_pid=`rsh $target ps -ef | grep "f3.eab" | awk '{print $2}'`
the_f7_pid=`rsh $target ps -ef | grep "f7.eab" | awk '{print $2}'`
if ; then
y=1
fi
I get an error:
./script_name: test: 0403-021 ]... (4 Replies)
hi,
i was trying to club to test condition with if.
if -o ; then
it is giving me error message, i wanted to ask how can we check two condtions with one if. (1 Reply)
1. echo "abc 123 abc" | sed 's/*/X/'
yields -
X 123 abc
Does this mean the "*" operator matches ONLY the first and
the entire token - "abc" and replaces with "X" ?
2. echo "123 abc" | sed 's/*/X/'
yields -
X123 abc
What does this indicate about the "*" operator ?? (7 Replies)
Hi
I want to group
like this but syntactic is not right ...
Thanks
if
Like this below does not work properly ..
if
then
:
else
usage
exit 1
fi (5 Replies)
Hi,
Please clear the 2 questions,
2 Questions,
1) Why the new as a operator? Is there any special reason why it can't be a function like malloc?
2) How are we considering sizeof(),new are as a opearartors? I know + - * / -> , . etc.. are operators, which criteria satisfied by sizeof()... (4 Replies)
Hi,
I have the below script executed
arg="dir"
if "$arg" = "dir"
then
echo "true"
else
echo "false"
fi
Please let me know what happens in the if command.
My output is:
dir: dir: No such file or directory
false
which is not the desired output.
When i used test command... (1 Reply)
I wrote a little students management program using structs, and when I try to compile it, an error appears:
luke@luke-desktop:~/Desktop/ProgII$ g++ recStudents.cc
recStudents.cc: In function ‘void add(TList&, Tstudent)':
recStudents.cc:114: error: no match for ‘operator' in ‘Slist'Here... (2 Replies)
im new to bash scripting and im just using online tutorials and trial and error. i wanted to write a script to read numbers from a file and find their sum:
#!/bin/bash
theSum=0
for line in $(cat numbers.txt)
do
let "theSum = theSum + $line"
echo "$line"
done
echo "The sum is... (3 Replies)
hi,
I got a requirement to change existing script like below to search additional pattern "DB select". i tried using \| opearator but it is not working :(. Below is the existing code
echo $(cat ${1} |sed -n '/Error in/ {
N
N
N
/Too many/ {
p
... (5 Replies)
Discussion started by: shyamxtasy
5 Replies
LEARN ABOUT NETBSD
pciback
PCIBACK(4) BSD/xen Kernel Interfaces Manual PCIBACK(4)NAME
pciback -- Xen backend paravirtualized PCI pass-through driver
SYNOPSIS
pciback* at pci?
DESCRIPTION
The pciback driver is the backend part of the PCI pass-through functionality that can be used by the Xen dom0 to export pci(4) devices to a
guest domain. To export a PCI device to a guest domain, the device has to be attached to pciback in the dom0.
When the guest domain is NetBSD, the device attached to the pciback driver will attach to a xpci(4) bus inside the guest domain.
EXAMPLES
To attach a device to the pciback driver, follow these steps:
1. look for the device PCI ID, via pcictl(8).
2. edit boot.cfg(5) and add the PCI ID to the list of PCI IDs that you want to attach to pciback, in bus:device.function notation.
The list is passed to dom0 module via the pciback.hide parameter:
pciback.hide=(bus:dev.fun)(bus:dev.func)(...)
See also boot(8).
3. reboot dom0.
4. add the PCI ID to the list of PCI devices in the domain configuration file:
pci = ['bus:dev.fun', '...']
5. start the guest domain.
SEE ALSO pci(4), xpci(4), boot(8), pcictl(8)HISTORY
The pciback driver first appeared in NetBSD 5.1.
AUTHORS
The pciback driver was written by Manuel Bouyer <bouyer@NetBSD.org>.
CAVEATS
Currently, to attach a device to the pciback backend, this procedure has to be performed at boot(8) time. In the future, it will be possible
to do it without requiring a dom0 reboot.
SECURITY CONSIDERATIONS
As PCI passthrough offers the possibility for guest domains to send arbitrary PCI commands to a physical device, this has direct impact on
the overall stability and security of the system. For example, in case of erroneous or malicious commands, the device could overwrite physi-
cal memory portions, via DMA.
BSD January 8, 2011 BSD