10-28-2001
Use putenv() to put the variable in the environment before you call system(). Then the shell can pick it up out of the environment.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I want to input unix variable to sqlplus.The following is working fine
sqlplus username/password @dummy.sql param1 param2 << EOF
create user $1 identified by $2;
EOF
But I dont want any file name to be passed,I just want to pass the parameter. Is there any way to that??
Thanks... (3 Replies)
Discussion started by: sakthi.abdullah
3 Replies
2. UNIX for Advanced & Expert Users
Suppose I have a unix variable called RGNM which is holding a value. Now I want to call a plsql function in my script. THis plsql function takes one IN parameter. I want to pass my UNIX VARIABLE Value to the plsql function. Can i just give it by giving $RGNM in the function after calling sqlplus... (1 Reply)
Discussion started by: cobroraj
1 Replies
3. UNIX for Dummies Questions & Answers
I would like to know how to pass a variable inside a variable to a function.
sample code below
--------------
for x in 1 9
do
check_null $C$x ##call function to check if the value is null
if
then
echo "line number:$var_cnt,... (2 Replies)
Discussion started by: KingVikram
2 Replies
4. Shell Programming and Scripting
Hi,
I am writing a script which creates an external table using a shell script. My requirement is like this.
Usage: . ./r.ksh <table_name> - this should create an external table.
e.g . ./r.ksh abc - this should create an external table as abc_external.
How do i achieve this? Please... (5 Replies)
Discussion started by: Anaramkris
5 Replies
5. Shell Programming and Scripting
Please help me how to pass some unix vairable to oracle. I have used below , but not displaying passed (inval) value.
calling()
{
sqlplus -s $1/$2@$3 <<EOF
begin
exec call_sql($4);
end;
exit
EOF
}
calling user pwd inst value1... (17 Replies)
Discussion started by: Jairaj
17 Replies
6. Programming
hi,
i am trying to call a unix script in a c program, this unix script will set a flag, the value of which i would like to return to the calling C program. this is the code that i have written.. the get env functions works if i use other env variables set at session level in unix like... (1 Reply)
Discussion started by: sais
1 Replies
7. Shell Programming and Scripting
Hi Guys,
I am trying to pass a string variable from Unix shell script to sqlplus as a parameter.
I have tried using single quotes with the variable name but it does not work. Please help me with it.
I am using BASH.
My code:
Your help is much appreciated.
Thanks,
shil (2 Replies)
Discussion started by: infintenumbers
2 Replies
8. Shell Programming and Scripting
I need help
I have a unix command :
VERSION=$(ls -d /vsn/v12.??.??.?? | sort | tail -1)
when i do echo $VERSION, i get the exact value, i want.
Now i want to use this variable and pass it to an xml. How can i do that? (1 Reply)
Discussion started by: samk
1 Replies
9. Shell Programming and Scripting
sqlplus -s $USER_ID@$SID/$PWD<<EOF>sql_1.txt
set feedback off
set heading off
select 114032 as c_1 from dual ;
EOF
for i in `cat sql_1.txt`
do
sh script_1.sh $i
Currently i am passing one column value to the single unix variable.
How can i pass the values from 2... (2 Replies)
Discussion started by: rafa_fed2
2 Replies
10. UNIX for Advanced & Expert Users
I have a below syntax its working fine...
var12=$(ps -ef | grep apache | awk '{print $2,$4}')
Im getting expected output as below:
printf "%b\n" "${VAR12}"
dell 123
dell 456
dell 457
Now I wrote a while loop.. the output of VAR12 should be passed as input parameters to while loop and results... (5 Replies)
Discussion started by: sam@sam
5 Replies
PUTENV(3) Linux Programmer's Manual PUTENV(3)
NAME
putenv - change or add an environment variable
SYNOPSIS
#include <stdlib.h>
int putenv(char *string);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
putenv(): _XOPEN_SOURCE
|| /* Glibc since 2.19: */ _DEFAULT_SOURCE
|| /* Glibc versions <= 2.19: */ _SVID_SOURCE
DESCRIPTION
The putenv() function adds or changes the value of environment variables. The argument string is of the form name=value. If name does not
already exist in the environment, then string is added to the environment. If name does exist, then the value of name in the environment
is changed to value. The string pointed to by string becomes part of the environment, so altering the string changes the environment.
RETURN VALUE
The putenv() function returns zero on success, or nonzero if an error occurs. In the event of an error, errno is set to indicate the
cause.
ERRORS
ENOMEM Insufficient space to allocate new environment.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------------------+
|Interface | Attribute | Value |
+----------+---------------+---------------------+
|putenv() | Thread safety | MT-Unsafe const:env |
+----------+---------------+---------------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.
NOTES
The putenv() function is not required to be reentrant, and the one in glibc 2.0 is not, but the glibc 2.1 version is.
Since version 2.1.2, the glibc implementation conforms to SUSv2: the pointer string given to putenv() is used. In particular, this string
becomes part of the environment; changing it later will change the environment. (Thus, it is an error is to call putenv() with an auto-
matic variable as the argument, then return from the calling function while string is still part of the environment.) However, glibc ver-
sions 2.0 to 2.1.1 differ: a copy of the string is used. On the one hand this causes a memory leak, and on the other hand it violates
SUSv2.
The 4.4BSD version, like glibc 2.0, uses a copy.
SUSv2 removes the const from the prototype, and so does glibc 2.1.3.
SEE ALSO
clearenv(3), getenv(3), setenv(3), unsetenv(3), environ(7)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2016-03-15 PUTENV(3)