Is there a way to get the command line arguments.
I am using getopt(3) but if the arguments are more than one for a particular option than it just ignores the second argument. For eg
./a.out -x abc def
now abd will be got with -x using getopt "( x : )" and string abc\0def will get stored... (7 Replies)
Looking for a little help parsing some command line arguments in a bash script I am working on, this is probably fairly basic to most, but I do not have much experience with it.
At the command line, when the script is run, I need to make sure the argument passed is a file, it exists in the... (3 Replies)
Does anybody know how to Accept a “userid” as a command line argument on a Unix Bourne Shell Script?
The output should be something like this:
User userid has a home directory of /path/directory
the default shell for this user is /path/shell (1 Reply)
Does anybody know how to Accept a “userid” as a command line argument on a Unix Bourne Shell Script?
The output should be something like this:
User userid has a home directory of /path/directory
the default shell for this user is /path/shell (1 Reply)
Does anybody know how to Accept a “userid” as a command line argument on a Unix Bourne Shell Script?
The output should be something like this:
User userid has a home directory of /path/directory
the default shell for this user is /path/shell (5 Replies)
Hello All,
i am known to the limitation of different shells while passing more than 9 command line arguments
i just tried the example below
i do see my current shell is tcsh
echo $SHELL
/bin/tcsh
so if i make my script executable and run it
output is
... (6 Replies)
Hi... can anyone please help me out in using the CASE and command line argument in shell script... i am bit new to shell scripting...below i have explained my proble with example...
say i have an executable file with name 'new1.sh' and there are 3 functions in it a(), b() and c()....and there... (5 Replies)
Hi,
I've a python script called aaa.py and passing an command line option " -a" to the script like, ./aaa.py -a
& Inside the script if the -a option is given I do some operation if not something else.
code looks like
./aaa.py -a
.
.
if options.a
---some operation---
if not options.a... (1 Reply)
hi,
I am new in the shell script, and c programming with linux. I am looking to pass the arguments in c program that should be executed by the shell script.
e.g.
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv)
{ int i;
for (i=1;i<argc; i++)
{
... (2 Replies)
Hi guys,
I am having trouble with this script. What i want it to do is to iterate all command line arguments in reverse order. The code below does this fine but i need the output to print the words on separate lines instead of one line:
#!/bin/bash
#Takes in the arguments and displays them... (7 Replies)
Discussion started by: pipeline2012
7 Replies
LEARN ABOUT SUNOS
setenv
setenv(3C) Standard C Library Functions setenv(3C)NAME
setenv - add or change environment variable
SYNOPSIS
#include <stdlib.h>
int setenv(const char *envname, const char *envval, int overwrite);
DESCRIPTION
The setenv() function updates or adds a variable in the environment of the calling process. The envname argument points to a string con-
taining the name of an environment variable to be added or altered. The environment variable is set to the value to which envval points.
The function fails if envname points to a string which contains an '=' character. If the environment variable named by envname already
exists and the value of overwrite is non-zero, the function returns successfully and the environment is updated. If the environment vari-
able named by envname already exists and the value of overwrite is zero, the function returns successfully and the environment remains
unchanged.
If the application modifies environ or the pointers to which it points, the behavior of setenv() is undefined. The setenv() function
updates the list of pointers to which environ points.
The strings described by envname and envval are copied by this function.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is returned, errno set to indicate the error, and the environment is left
unchanged.
ERRORS
The setenv() function will fail if:
EINVAL The envname argument is a null pointer, points to an empty string, or points to a string containing an '=' character.
ENOMEM Insufficient memory was available to add a variable or its value to the environment.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO getenv(3C), unsetenv(3C), attributes(5), standards(5)SunOS 5.10 31 Mar 2002 setenv(3C)