Hi guys!
I have just started with shell programming!!
I am having pronblem with variable subsitutuion.
when i do
egrep "*" marks
this will give me the pattern match.
but how can i catch the output of that result in a variable.
if i say
result = egrep "*" marks
it gives me syntax... (2 Replies)
Hi Guys,
I am trying to alter a script for my company.
I need the start of it to go something like this.
User is asked to input 8 numbers
8 numbers are written to a txt file
***** ***** ***** txt file is read ***** *****
The text file gets read in between other files represented by... (2 Replies)
Hi all,
i am beginner to unix and trying out a shell script which does the following. i have to calculate a persons salary. his salary is read from the keyboard. he has two types of deductions. 40% as dearness allowance and 20% as house rent. i have to print the gross salary. here is the code... (5 Replies)
I need to invoke a program on remote server using ssh in a shell script. In addition i would like to capture date/time and if there is any errors , then script should write to log file. can someone please help me out? (1 Reply)
HELP!My program ends after entering one choice---need help making it take multiple inputs,instead of terminating after displaying just one
#!/bin/bash# Crude address databaseclear # Clear the screen.echo " Contact List"echo " ------- ----"echo "Choose one of the following... (6 Replies)
hi guys
we've had nagios spewing false alarm (for the umpteenth time) and finally the customer had enough so they're starting to question nagios. we had the check interval increased from 5 minutes to 2 minutes, but that's just temporary solution. I'm thinking of implementing a script on the... (8 Replies)
I need to create digit day script that takes a single numeric argument and then it should print out the day of the week using the number modulo 7 formula e.g: 0 - Sunday 6- Saturday 131 - Friday
I am fairly new to unix so I don't know how to use the number modulo 7 formula.
Does the script need... (3 Replies)
Hi All,
I have a script which as below
#!/bin/bash
for i in `cat servers`
do
ssh uname@$i "df -t xfs --total | grep total";
done > out.txtOutput as below
--------------
total 140583991104 118622795524 21961195580 85% -
total 140583991104 112888595524 27695395580 ... (4 Replies)
So I'm trying to pass certain json elements as env vars and use them later on in a script.
Sample json:
JSON='{
"Element1": "file-123456",
"Element2": "Name, of, company written in, a very weird way",
"Element3": "path/to/some/file.txt",
}'
(part of the) script:
for s... (5 Replies)
In Bash shell - the ps -ef shows only the /bin/bash but the script name is not displayed ? Is there any way to get the script names for the process command ?
--- Post updated at 08:39 AM ---
in KSH (Korn Shell), my command output shows the script names but when run in the Bash Shell... (3 Replies)
Discussion started by: i4ismail
3 Replies
LEARN ABOUT MINIX
pwdauth
PWDAUTH() PWDAUTH()
NAME
pwdauth - password authentication program
SYNOPSIS
/usr/lib/pwdauth
DESCRIPTION
Pwdauth is a program that is used by the crypt(3) function to do the hard work. It is a setuid root utility so that it is able to read the
shadow password file.
Pwdauth expects on standard input two null terminated strings, the password typed by the user, and the salt. That is, the two arguments of
the crypt function. The input read in a single read call must be 1024 characters or less including the nulls. Pwdauth takes one of two
actions depending on the salt.
If the salt has the form "##user" then the user is used to index the shadow password file to obtain the encrypted password. The input
password is encrypted with the one-way encryption function contained within pwdauth and compared to the encrypted password from the shadow
password file. If equal then pwdauth returns the string "##user" with exit code 0, otherwise exit code 2 to signal failure. The string
"##user" is also returned if both the shadow password and the input password are null strings to allow a password-less login.
If the salt is not of the form "##user" then the password is encrypted and the result of the encryption is returned. If salt and password
are null strings then a null string is returned.
The return value is written to standard output as a null terminated string of 1024 characters or less including the null.
The exit code is 1 on any error.
SEE ALSO crypt(3), passwd(5).
NOTES
A password must be checked like in this example:
pw_ok = (strcmp(crypt(key, pw->pw_passwd), pw->pw_passwd) == 0);
The second argument of crypt must be the entire encrypted password and not just the two character salt.
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
PWDAUTH()