Hi to all...
I'm currently running a C++ program in Unix environment and it is dependent to a Unix environment variable with a date value.
ex: echo $DateToday
20060403
I want to change that date in my C++ program, changing the value date to 20061120 and revert back to original... (6 Replies)
I have function declaration in Java and same function definition written in C programming language.. A JNI call from Java is made to a fuction...Function would set the environment variable { putenv(cEnvString1);} using C-built -in function ..and later return the encrypted string...
putenv is... (6 Replies)
Hi,
I already have one CPP program which invokes the C program.And the C program contains whole function definitions..!This is a working program..I have to enable the logs in both CPP as well as in the C program ..!So I am reading the enviornmental variable log path from the CPP and doing the... (2 Replies)
I've searched Google and now this forum. Best guess is my search fu is not good (and it probably isn't). The Google search did bring me here.
Background
I have a number of Korn Shell scripts who all use one of 3 values for an environment variable used in the backup system.
On occasion one or... (8 Replies)
shell script: #!/bin/csh set VAR=12345 echo $VAR
will peacefully give the output 12345 at shell. I need to use C++ to do the same in some part of the code:
string str = "12345";
retValue="set var1= "+str;
system(retValue1.c_str());
system("echo $var1");
This doesn't create a system... (1 Reply)
I want to set a enviroment variable
VDC_DIR to a particular directory.
I am doing it as
export VDC_DIR=/abc
it gets set but when i logout and do relogin than its not there.
one way could be setting it in .profile file.
but i have seen it on another box where it is not present in... (2 Replies)
I am trying to install timbl- memory based learner tools in ubuntu. it after unpacking the tar file it brings the following msg
No package 'ticcutils' found
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively, you... (1 Reply)
I am wondering about the following:
stty columns 140
I have found that a number of times I need to set my display columns to a high number (such as 140) but I have to do this every time I login to use putty/ssh. Can we set this with an environmental variable so that it is permanent?
Also... (4 Replies)
Linux Redhat, BASH Shell.
I want to put this in my .bash_profile
I have log files that go to directory paths based in part on other variables such as went DB Name is set in memory. So if the DB Name changes the path to the log file changes. How do I create an environment variable I put into... (6 Replies)
Discussion started by: guessingo
6 Replies
LEARN ABOUT PLAN9
env
ENV(3) Library Functions Manual ENV(3)NAME
env - environment variables
SYNOPSIS
bind #e /env
/env/var1
/env/var2
...
DESCRIPTION
The env device serves a one-level directory containing files with arbitrary names and contents. The intention is that the file name is the
name of an environment variable (see rc(1)), and the content is the variable's current value.
When a fork(2) system call creates a new process, both the parent and the child continue to see exactly the same files in the env device:
changes made in either process can be noticed by the other. In contrast, an rfork system call with the RFENVG bit set (see fork(2)) causes
a split: initially both process groups see the same environment files, but any changes made in one process group cannot be noticed by the
other. An rfork with RFCENVG splits and then clears the environment.
SEE ALSO rc(1), fork(2)SOURCE
/sys/src/9/port/devenv.c
BUGS
A write starting at an offset after the current extent of a file yields an error instead of zero filling.
ENV(3)