03-02-2008
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi, I have a list of filenames and I want to verify if they all exist. I know "if filename" would do the trick but how do I go about a list of files? thanks (3 Replies)
Discussion started by: mpang_
3 Replies
2. UNIX for Dummies Questions & Answers
Hi ,
I have a script wherein i have a For Loop.
Within this for loop i create a variable and assign it a value.
The script goes to a For Loop only if certain conditions are met , which means the variable may or may not exists.
However down the line in the script i have to check if that... (2 Replies)
Discussion started by: samit_9999
2 Replies
3. Programming
Hi everybody,
I need to check in C program whether a given login is known on the system. Is there any system function that could do this ?
So far, all I could find is getpwnam(), which answers my problem by parsing the local password database. But won't work if a user is authenticated by... (2 Replies)
Discussion started by: xavier054
2 Replies
4. AIX
Hello
I am having a requirement like if there is no file in the directory then i need a message to pop on after the execution of the script.
My script basically does for File in `ls -t $DIRECTORY | tail -1`;
if there is no file the DIRECTORY then the script is simply exiting with out... (2 Replies)
Discussion started by: dsdev_123
2 Replies
5. AIX
I have requirement where i need to search for files which start with SALESORDER and PURCHASEORDER. i need to process the files with SALESORDER first and then PURCHASEORDER. If SALESORDER files are not there i dont want to process PURCHASEORDER and i want to come out of script. I have written a code... (4 Replies)
Discussion started by: dsdev_123
4 Replies
6. Shell Programming and Scripting
Hi
How can I check if the path exist or not?
echo "Enter path:";
read my_path;
##I should check whether my_path exists or not.... (5 Replies)
Discussion started by: tjay83
5 Replies
7. Shell Programming and Scripting
i want to check if the file is in the directory or not, and also it should be handle error conditions, like missing files and report the error and exit.
i did something like this:
file ="hello"
if !test -e "${file}"
then echo "No such files exist!"
exit 1
else
do something.......
fi
... (1 Reply)
Discussion started by: mingming88
1 Replies
8. UNIX for Dummies Questions & Answers
I need to check for the existence of a file *.log in a specific directory using a perl script.
Presently am not in that particular directory.
So i am using chdir ("/path/to/my/file)
And then i am using the -e in an if statement to check if it exists.
if (-e $File) {......}
$File contains the... (1 Reply)
Discussion started by: manutd
1 Replies
9. Shell Programming and Scripting
Hi
I have a requirement to check whether the files exists, then it will call other steps in shell script.
I did
ls *.csv|wc -l
if
then checking the count of the files should be more than 1 then it will call other steps.
I am getting the error that too many arguements as there n... (13 Replies)
Discussion started by: cnrj
13 Replies
10. Shell Programming and Scripting
hi
i wanted to check if the file exist or not(multiple files)
DIRE=/home/V478
if ;
then
echo "file present"
else
echo "file not present"
fi
But i am getting the error as
: [: unexpected operator/operand (3 Replies)
Discussion started by: ATWC
3 Replies
LEARN ABOUT CENTOS
pam_authenticate
PAM_AUTHENTICATE(3) Linux-PAM Manual PAM_AUTHENTICATE(3)
NAME
pam_authenticate - account authentication
SYNOPSIS
#include <security/pam_appl.h>
int pam_authenticate(pam_handle_t *pamh, int flags);
DESCRIPTION
The pam_authenticate function is used to authenticate the user. The user is required to provide an authentication token depending upon the
authentication service, usually this is a password, but could also be a finger print.
The PAM service module may request that the user enter their username vio the the conversation mechanism (see pam_start(3) and
pam_conv(3)). The name of the authenticated user will be present in the PAM item PAM_USER. This item may be recovered with a call to
pam_get_item(3).
The pamh argument is an authentication handle obtained by a prior call to pam_start(). The flags argument is the binary or of zero or more
of the following values:
PAM_SILENT
Do not emit any messages.
PAM_DISALLOW_NULL_AUTHTOK
The PAM module service should return PAM_AUTH_ERR if the user does not have a registered authentication token.
RETURN VALUES
PAM_ABORT
The application should exit immediately after calling pam_end(3) first.
PAM_AUTH_ERR
The user was not authenticated.
PAM_CRED_INSUFFICIENT
For some reason the application does not have sufficient credentials to authenticate the user.
PAM_AUTHINFO_UNVAIL
The modules were not able to access the authentication information. This might be due to a network or hardware failure etc.
PAM_MAXTRIES
One or more of the authentication modules has reached its limit of tries authenticating the user. Do not try again.
PAM_SUCCESS
The user was successfully authenticated.
PAM_USER_UNKNOWN
User unknown to authentication service.
SEE ALSO
pam_start(3), pam_setcred(3), pam_chauthtok(3), pam_strerror(3), pam(8)
Linux-PAM Manual 09/19/2013 PAM_AUTHENTICATE(3)