10-15-2004
make argument enviromental..
try to make the argument that you are passing down enviromental.. use the set env command or export to env that should pass down the argument right down to process B I can't give you much more information than that on what you have told me, but I am sure it will work..
moxxx68
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
hai,
i am doing my masters degree in computers.please any one tell me about
fork(),semaphores,mutex,messaging queues,messaging using pipes ,and msgget(),msgrecv() funtions
in ipc programming .
i have exam on that i have a book but in that they not given clearly.
hope u will
... (2 Replies)
Discussion started by: G.Vishnuvardhan
2 Replies
2. Programming
Hi! I'm trying to write this program: in my intentions it should get a message and send it to a second process (pid_upost), then to a third process (pid1, pid2, pid3, depending on the choice made when a new message is inserted). This program should write the message in a file (message1, message2 or... (1 Reply)
Discussion started by: Kaminski
1 Replies
3. Programming
Hi guys, I'm new to Linux and Unix I have just simple code . But I don't know why it doesn't work ..
But, the outputfile is Blank.. I don't understand why.. Please help me.. Thank you very much
P.S: sorry, I don't know how to edit this post clearly.. it's hard to read.. Please try.. (2 Replies)
Discussion started by: thanh_sam_khac
2 Replies
4. Solaris
I was asked to look into a problem with a Sun Netra 440 in another department. On the server in question, the relevant 'uname -a' information is, "SunOS host1 5.9 Generic_118558-16 sun4u sparc SUNW,Netra-440". That information aside, while the other admin is logged into the ALOM, these errors are... (0 Replies)
Discussion started by: Borealis
0 Replies
5. Programming
Hi!
I wanted to know the advantages / disadvantages of different IPC mechanims such as sockets, pipes (unnamed) , shared memory & message queues.
Pipes for example i hear are fast , but are difficult to debug as compared to sockets.
Can you guys please name some situations where one is... (4 Replies)
Discussion started by: _korg
4 Replies
6. UNIX for Dummies Questions & Answers
hey everyone,
I'm reading a tutorial on the Mach kernel principles, however, the port and port rights part are kind of confusing to me. I don't know if the book has typos or something but it seems a bit contradictory. It says that "ports, themselves, are not named. It is the port rights that are"... (10 Replies)
Discussion started by: neur0n
10 Replies
7. Programming
Suppose I have 5 independent process divided in two imaginay sets:
set1 set2
---------------------
p1 p3
| |
p2 p4
|
p5
The processes inside each set communicate mutually quite often.
I mean p1 and p2 communicate mutually quite often
Similarly p3, p4 and p5 communicate mutually... (2 Replies)
Discussion started by: rupeshkp728
2 Replies
8. HP-UX
Hi Experts,
Need your help for checking te interprocess communications settings on HP-UX box.
Using ipcs command I am able to view Message queue,semapohores etc, but from that output I m not able to understand how to determine if there is any issue with ipc settings and how to resolve that? (1 Reply)
Discussion started by: sai_2507
1 Replies
9. Shell Programming and Scripting
Actually i am thinking of some usefull application that involves both IPC and pthreads.But i am not quite sure what type of application involves both these together :confused:.
Anyways i am now working on creating a simple featured file manager that can do the following:
Display file name and... (2 Replies)
Discussion started by: ronmaximus
2 Replies
10. UNIX for Beginners Questions & Answers
Hello and thanks in advance for any help anyone can offer to help me understand this
I'm curious about a 30.000 ft view on how IPC works in Linux between parent-child processes...I understand there's multiple types of IPC's... But I'm currently trying to figure out if parent-child process IPC... (1 Reply)
Discussion started by: bodisha
1 Replies
LEARN ABOUT OPENSOLARIS
env
env(1) User Commands env(1)
NAME
env - set environment for command invocation
SYNOPSIS
/usr/bin/env [-i | -] [name=value]... [utility [arg... ]]
/usr/xpg4/bin/env [-i | -] [name=value]...
[utility [arg... ]]
DESCRIPTION
The env utility obtains the current environment, modifies it according to its arguments, then invokes the utility named by the utility op-
erand with the modified environment.
Optional arguments are passed to utility. If no utility operand is specified, the resulting environment is written to the standard output,
with one name=value pair per line.
/usr/bin
If env executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)).
/usr/xpg4/bin
If env executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)).
OPTIONS
The following options are supported:
-i | - Ignores the environment that would otherwise be inherited from the current shell. Restricts the environment for utility to
that specified by the arguments.
OPERANDS
The following operands are supported:
name=value Arguments of the form name=value modify the execution environment, and are placed into the inherited environment before
utility is invoked.
utility The name of the utility to be invoked. If utility names any of the special shell built-in utilities, the results are unde-
fined.
arg A string to pass as an argument for the invoked utility.
EXAMPLES
Example 1 Invoking utilities with new PATH values
The following utility:
example% env -i PATH=/mybin mygrep xyz myfile
invokes the utility mygrep with a new PATH value as the only entry in its environment. In this case, PATH is used to locate mygrep, which
then must reside in /mybin.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of env: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
PATH Determine the location of the utility. If PATH is specified as a name=value operand to env, the value given shall be used in the
search for utility.
EXIT STATUS
If utility is invoked, the exit status of env is the exit status of utility. Otherwise, the env utility returns one of the following exit
values:
0 Successful completion.
1-125 An error occurred.
126 utility was found but could not be invoked.
127 utility could not be found.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
/usr/bin
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
/usr/xpg4/bin
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWxcu4 |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
ksh(1), sh(1), exec(2), profile(4), attributes(5), environ(5), standards(5)
SunOS 5.11 2 Jan 2002 env(1)