hey i have to implement copy command in parallel in c language.
i dont know how to create a new directory in destination.
if anything u know related to this help me (1 Reply)
Hi all,I'm reading <Advanced programming in the UNIX environment>,that book asked the reader to implement a function which has same functions with dup2 without calling fcntl.Could anyone give me a tip?Any help will be appreciated.:) (8 Replies)
Hi
I'm trying to implement CAPWAP protocol for my application.i'm able to configure my server side but i'm getting error at client(WTP) side as IOCTL error.while running the command
#./WTP /mnt/cf/capwap/
: wlan2
Starting WTP...
# WTP Loads... (0 Replies)
Hi everybody,
i've been googling for ages now and gotten kinda desperate... The question, however, might be rather trivial for the experts: What is it exactly, i.e. physically, the POSIX function (for a file) "lseek" does? Does it trigger some kind of synchronization on disk? Is it just for the... (4 Replies)
Hi,
I am trying to execute a program with pipes to run a few basic commands by forking children. When I try to run commands in the child process without pipe, I am unable to run the command as execv fails. However for commands that are given with pipes execute successfully.
for example:... (1 Reply)
I want to know about the time command flow of execution.
I have a doubt in the time calculation for the command execution.
Whether the real time is sum of (time taken to open the unix window + execute the command given infront of the "time" command + close the unix window)
or Just the time... (1 Reply)
I have a running service which runs in background.
It execute shell commands by function system(cmd)
I need to report fail when command execution takes more than 60 seconds.
Parent doesn't need to wait for 60 seconds of time if the cmd execution completed already.
runCommand()
{
pid_t... (3 Replies)
Discussion started by: techmonk
3 Replies
LEARN ABOUT HPUX
chroot
chroot(1M)chroot(1M)NAME
chroot - change root directory for a command
SYNOPSIS
newroot command
DESCRIPTION
The command executes command relative to the newroot. The meaning of any initial slashes in path names is changed for command and any of
its children to newroot. Furthermore, the initial working directory is newroot.
Note that command suffixes that affect input or output for the command use the original root, not the new root. For example, the command:
locates file relative to the original root, not the new one.
The command variable includes both the command name and any arguments.
The new root path name is always relative to the current root. Even if a is currently in effect, the newroot argument is relative to the
current root of the running process.
This command is restricted to users with appropriate privileges.
EXTERNAL INFLUENCES
International Code Set Support
Single- and multibyte character code sets are supported.
WARNINGS
command cannot be in a shell script.
Exercise extreme caution when referring to special files in the new root file system.
does not search the environment variable for the location of command, so the absolute path name of command must be given.
When using to establish a new environment, all absolute path name references to the file system are lost, rendering shared libraries inac-
cessible. If continued access to shared libraries is needed for correct operation, the shared libraries and the dynamic loader be copied
into the new root environment.
SEE ALSO chdir(2), chroot(2).
STANDARDS CONFORMANCE chroot(1M)