If you add a 'set -x' command at the top of your function, it will generate trace output which should show you exactly where things are going wrong. If you can't figure it out from that, paste that output for us. Naturally, if there is sensitive information involved, mask it in a way that protects it without altering the usefulness of the trace.
Is it possible to call a C function from within a shell script. This C function is part of an API. What do I need to make it work from my shell script. Anybody please help. (4 Replies)
i have a function defined in one ksh (ksh 1)
i want to use that function in another ksh (ksh 2)
i am using
. $<directoryname>/<ksh name>
i am calling the function defined in ksh 1 in ksh 2
i want the returnstatus from the above operation
but it is not executing the function
what i... (1 Reply)
Hi,
I have searched the forum for the query, But i didnt find an exact answer.
I have a script(1.sh) and a c program(sample.c)
sample.c contains many function definitions.( run(), find(), add() etc).
I want to call functions in sample.c from 1.sh and use the return value in 1.sh... (3 Replies)
Some Code
After Some code part is executed the control doesnt go to rvin_doxx_scrt.. and the script exits
rvin_doxx_scrt()
{
Some Code
}
if (som code)
... (4 Replies)
hi guys, how r u???
please I need you, help me please.
I have a shell, in this shell i have this function and another code lines, this function is getting date one day back. the function is in the same shell (FILE 1)
Now I need put this function in another file (FILE 2) and calling... (4 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I must write a shell script that calls two external Perl functions--one of which sorts the data in a file, and... (6 Replies)
I need to
1.Open a csv
2.Process the csv i.e. Modify 2 column in the csv.
To modify the column the value needs to be passed to a pl/sql function and the return value should be updated
For eg:
If column 2 E,then E will be passed in database function
which will return Employee.
3. Write a... (5 Replies)
I have a script which does gunzip, zip and untar.
Input to the script is file name and file directory (where file is located)
I am reading the input parameters as follows:
FILENAME=$1
FILEDIR=$2
I have created 3 functions that are as follows:
1) gunzip file
2) unzip file... (2 Replies)
Discussion started by: pinnacle
2 Replies
LEARN ABOUT ULTRIX
trace
trace(1) General Commands Manual trace(1)Name
trace - trace system calls of programs
Syntax
trace [options] cmd args...
Description
The command with no flag arguments traces for the given cmd and args all system calls made and prints a time stamp, the PID, call and/or
return values and arguments and puts its output in the file trace.dump.
Options-f filename
Puts dump in file filename.
-z Echos arguments only.
Only one of the following option arguments can be specified at one time.
-c# Traces given PIDs and their children. Up to sixteen PIDs can be specified.
-g# Traces given groups only. Up to sixteen Group IDs can be specified.
-p# Traces given PIDs only. Up to sixteen PIDs can be specified.
-s# Traces given system calls only. Up to sixteen PIDs can be specified.
-u# Traces given UIDs only. Up to sixteen PIDs can be specified.
Examples
trace -f ls.dump ls -l /dev >ls.out
runs the cmd ls -l /dev and puts the trace in ls.dump and output in ls.out.
trace -f csh.trace -p $$ &
will trace your login shell in the background. To stop the trace just send it a termination signal (that is, kill -TERM trace_pid).
Restrictions
Due to security, no one, not even the super-user can trace anyone else's programs. This sort of negates some of the usefulness of the -g
and -u flags.
The program cannot be traced.
Only 16 numbers can be given to the -c, -p, -g, -u, and -s flags.
The kernel configuration file must contain the following:
options SYS_TRACE
pseudo-device sys_trace
In addition, the superuser must use the following command sequence to create the device:
cd /dev
MAKEDEV trace
If both lines are not in the configuration file or if the device is not made, the message "Cannot open /dev/trace" appears.
Files
/dev/trace read only character special device for reading syscall data.
trace.dump default file for the system call trace data.
See Alsoopen(2), close(2), ioctl(2), select(2), read(2), trace(5)trace(1)