I am trying to understand a program in a book and this program suppose to call other programs which are in the same folder, the other programs are called 'lu' and 'add' but for some reason when it gets to the last line of each case to call these programs there is an error message saying
and the lu program looks like this:
I don't understand why is not calling them. Please any help is appreciated. Thank you.
Last edited by Scott; 11-26-2010 at 07:14 AM..
Reason: Please use code tags
i just finished a project for a c++ class that i wrote at home on my computer, compiled with gcc. when i brought the code into school it would not compile, it would complain that cannot call main() function. at school we use ancient borland c++ from 1995. anyway my program has 20 different... (3 Replies)
Ok, I have written a main script which checks a directory contents every 30 secs then sleeps. The subscript does a usermod, if the user is logged on, it sleeps for 30 secs and then trys again over and over again.
Here's the problem. when the subscript is called ./subscript.sh or exec... (1 Reply)
What is the sytax to return an int from C program main back to calling shell?
#!/usr/bin/ksh
typeset -i NO_RECS
$NO_RECS=process_file
# Process file is a C program that is set up to return an int from main. The
#program complies with no issues, but an error is generated when the... (3 Replies)
main()
{
pid_t child;
child=fork();
if(child > 0)
{sleep(60);
}
else
{exit(0);
}
}
the above code will create zombie process,which will be adopted by init as soon as parent process will dies.Can any one gimme a code or an alogrithm to keep this zombie proocess alive even after... (6 Replies)
Hi. I have a problem in running a program in linux system. This program (damaver.l86) is in the path /home/shenk/damaver/, and it needs to call another program (supcomb.l86) in another path /home/shenk/supcomb/. I tried to modified the .bash_profile, but it didn't work. The error message is always... (1 Reply)
hi everyone ,
i want to read an option and depending on the option call the program .For ex
#! /bin/ksh
export JAVA_HOME=/home/oracle/jdk1.6.0_20
echo " Please enter mod-modeler, dev - sqldeveloper"
read choice
if ; then
echo ' SQL DEVELOPER IS STARTING NOW ... '
cd... (0 Replies)
I have some csh and awk scripts on path
/nethome/chrisd/HSeis/TommyCD/TommyCD-1101/Scripts
Usually I have a working directory from where I run the scripts by having a soft link to the Scripts directory
in the directory above the working one
For example from
... (4 Replies)
Long story short: I'm working inside of a Unix SSH under a bash shell. I have to code a C program that generates a random number. Then I have to call the compiled C program with a Perl program to run the C program 20 times and put all the generated random #s into a text file, then print that text... (1 Reply)
Hello All,
I am trying to call a function from the calling main program from a dlopened library function, below is the entire code, when I execute it it crashes with sigill. Can you guys help me out I guess I am missing out on the linker flag or something here. besides I am new to AIX and... (1 Reply)
Hello,
just a silly question, do you know some server that can be used for simple calling (soft phone on Android) and messaging between three users? Something like Asterisk but lightweight just for family use I can add to my VPS.
Many thanks,
Stan (0 Replies)
Discussion started by: brusell
0 Replies
LEARN ABOUT OPENSOLARIS
echo
echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)NAME
echo - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.
echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
ronment variables.
For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded slash-characters into space-characters
o pipe that output through wc -w for a count of the names in your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's
echo() also understands a as the audible bell character; however, these commands do not have an -n option.
OPTIONS -n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases.
SunOS 5.11 3 Aug 1994 echo(1B)