I want to add paths to a CLASSPATH variable but if I use the :
setenv CLASSPATH /opt
all previous entries are erased. How do I append additional entries to a system variable without overwriting the original value.
Thanx (3 Replies)
Well first of all I am a real Unix newbie. I am taking a course on it in University. I kind of understand set and setenv but, I think it si something that I should really understand. So I thought that I would try a forum out and see how good you guys really are.
The question:
Execute the... (1 Reply)
Is it possible to set environement variable in a script (for example, perl script) so that the variable will be set after exiting the script - in a father shell. (2 Replies)
I am having the following environment setup script.
$cat dbenv.sh
#! /bin/csh
#
set history=32
stty sane
setenv ORACLE_HOME=/dboracle/orabase/product/10.1.0.3
set ORACLE_BASE=/dboracle/orabase
set... (2 Replies)
Hi whats the setenv command in unix..??
i have set the oracle_home path as aa.ii.1 in kron_settings and
mentioned setenv oracle_path as aa.ii.2 in user settings.
Does this make any changes made to the path name of the oracle_home when i run a scripts in unix..???:( (1 Reply)
Hi all!
I need to add new environment variable.
e.g. # setenv LD_LIBRARY_PATH "/usr/ucblib:"
#
I check:# env
LD_LIBRARY_PATH=/usr/ucblib:
After rebooting I don't see this variable.
Why don't save this variable?
Thanks. (5 Replies)
i have in c-shell
set value_str ="one three"
set line_seprator = ","
set value_and_sperator = "$value_str$line_seprator"
setenv STRING_CONCAT $STRING_CONCAT$value_and_sperator
and im getting error:
setenv: Too many arguments.
this is... (1 Reply)
Discussion started by: umen
1 Replies
LEARN ABOUT ULTRIX
popen
popen(3) Library Functions Manual popen(3)Name
popen, pclose - initiate I/O to/from a process
Syntax
#include <stdio.h>
FILE *popen(command, type)
char *command, *type;
pclose(stream)
FILE *stream;
Description
The arguments to are pointers to null-terminated strings containing respectively a shell command line and an I/O mode, either "r" for read-
ing or "w" for writing. It creates a pipe between the calling process and the command to be executed. The value returned is a stream
pointer that can be used (as appropriate) to write to the standard input of the command or read from its standard output.
A stream opened by should be closed by which waits for the associated process to terminate and returns the exit status of the command.
Because open files are shared, a type "r" command may be used as an input filter, and a type "w" as an output filter.
Diagnostics
The routine returns a null pointer if files or processes cannot be created, or the shell cannot be accessed.
The routine returns -1 if stream is not associated with a `popened' command.
Restrictions
Buffered reading before opening an input filter may leave the standard input of that filter mispositioned. Similar problems with an output
filter may be forestalled by careful buffer flushing, for instance, with For further information, see
The routine always calls and never calls
See Alsosh(1), pipe(2), wait(2), system(3), fclose(3s), fopen(3s)popen(3)