03-15-2015
First, post your entire code. That's not complete enough for anyone to say what's going wrong.
Second, post what's going wrong.
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1. UNIX for Advanced & Expert Users
I have been busy reading away on devices and filesystems and I am stuck on a particular subject matter.. I'm not understanding the concept behind mknod mkfifo makedev or related commands..
can anyone shed some light on the subject.!
any feedback welcome!
moxxx68 (0 Replies)
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2. Programming
I'm having difficulty understanding the purposes of using dup/dup2 when involving forks.
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3. Shell Programming and Scripting
I want to search for the line with the group name and add the user into the group. The file format is the same as /etc/group
The code i wrote is
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FS=":"
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4. Programming
Hi,
i have in one program such a pice of code
................
static int old_stderr_handle = -1;
static int old_stdout_handle = -1;
log_handle = open(log_file_name,O_CREAT|O_RDWR,932);
old_stderr_handle = dup(STDERR_FILENO);
if (dup2(log_handle,STDERR_FILENO) < 0)
{
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5. UNIX for Advanced & Expert Users
int redirect()
{
int fd,rc;
fd = open("sample.DAT",O_CREAT | O_RDWR , 00777 );
rc = dup2(fd , 1 ) ;
close (fd );
return 0;
}
I used the above to redirect all the cout statements to sample.DAT. process is redirecting the output and I had two questions
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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)
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Hi All ,
Is there any way to replace the pipe ( | ) with the broken pipe (0xA6) in unix (1 Reply)
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8. UNIX for Advanced & Expert Users
is it possible to duplicate file descriptors(opened by a different process) with the help of dup or dup2. the two process do not share parent child relationship as well. (2 Replies)
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9. Shell Programming and Scripting
Hi guys,
I need to know how i can ignore Pipe '|' if Pipe is coming as a column in Pipe delimited file
for eg:
file 1:
xx|yy|"xyz|zzz"|zzz|12...
using below awk command
awk 'BEGIN {FS=OFS="|" } print $3
i would get xyz
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10. Shell Programming and Scripting
I want to execute metasploit by two pipes to communicate with it, but I have troubles with that communication. When I run my program, I get this error: "stty: standard input: Inappropriate ioctl for device" and I don't receive the metasploit promt.
just select an exploit.
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LEARN ABOUT HPUX
xtunmanagechildren
XtUnmanageChildren(3X) XT FUNCTIONS XtUnmanageChildren(3X)
NAME
XtUnmanageChildren - unmanage children
SYNTAX
typedef Widget *WidgetList;
void XtUnmanageChildren(children, num_children)
WidgetList children;
Cardinal num_children;
ARGUMENTS
children Specifies a list of child widgets.
num_children
Specifies the number of children.
DESCRIPTION
The XtUnmanageChildren function performs the following:
o Issues an error if the children do not all have the same parent or if the parent is not a subclass of compositeWidgetClass.
o Returns immediately if the common parent is being destroyed; otherwise, for each unique child on the list, XtUnmanageChildren performs
the following:
- Ignores the child if it already is unmanaged or is being destroyed and marks it if not.
- If the child is realized, it makes it nonvisible by unmapping it.
o Calls the change_managed routine of the widgets' parent after all children have been marked if the parent is realized.
XtUnmanageChildren does not destroy the children widgets. Removing widgets from a parent's managed set is often a temporary banishment,
and, some time later, you may manage the children again.
SEE ALSO
XtManageChildren(3X), XtManageChild(3X), XtUnmanageChild(3X), XtChangeManagedSet(3X), XtIsManged(3X)
X Version 11 Release 6 XtUnmanageChildren(3X)