I need to check if an account has a valid password.
Would something like this work?
Code:
read ACCNAME
if grep -q "^$ACCNAME:\$6:" /etc/shadow; then
I noticed every entry in my shadow file that has a password starts with $6 ... it works for my current setup, but would it always work? I can't test for ^$ACCNAME:*: since !!* is locked and !! has no password.
Hi Folks,
I'm using bash script. I would like to check whether input is a number or not.(Only positive numbers).. if space or non numeric is entered, it should say "invalid input". pls help..
thanks in adv.
Br///
Vijay. (1 Reply)
Hi,
I have a 5 gig file, no record terminators, field terminators are newline. The record length is 768 and I would like to check that every 768th byte is a newline and print out the byte position if it isn't. I would like to do this going either forward or backwards with one command if... (3 Replies)
the script on excution should take a directory path from useran a numric input and it should check indicate whether its write or not?
if the cmmd sh<script-name>,dir/path.<500>" is greater than 500 in size should be copied to dir ,temp in pwd and display the mesage'files of 2000 bytes hav been... (4 Replies)
1. The problem statement, all variables and given/known data:
The script usage will be as follows:
library.third source_directory
- Your script will display an appropriate error message and exit with status 3 if no parameters are given
- Your script will display an appropriate error... (2 Replies)
Hi All,
I am a newbie...I would like to have a function which ll check if a file contains valid strings before "=" operator. Just to give you my requirement:
assume my file has content:
hello= gsdgsd sfdsg sgdsg sgdgdg
world= gggg hhhh iiiii
xxxx= pppp ppppp pppp
my... (5 Replies)
How to check the user input to be valid using shell script?
The valid input is in the format like as follows.
1. It can only have r,w,x or a hyphen and nothing else.
2. ensure the r, w, x are in the correct order.
for example: rwxr-xr-x is a valid format.
Thanks (5 Replies)
I need a script that should print 'yes' if the argument is a valid shell variable name else 'No' if it is not a valid shell variable. A valid one begins with an alphabet or percentage (%) character and is followed by zero or more alphanumberic or percentage (%) characters.
For example:
$... (6 Replies)
How can I validate if time (HH:MM:SS) argument is valid? I got this from web but I can't modify it to exit the script if the time argument is invalid.
echo $1 | awk -F ':' '{ print ($1 <= 23 && $2 <= 59 && $3 <= 59) ? "good" : "bad" }'
ex:
./script.ksh 12:34:21 = okay
./script.ksh... (10 Replies)
Hello,
I am trying to develop a script to check for valid hostnames. Below are the prerequisites for a valid hostname which I got from wiki :
Hostnames are composed of series of labels concatenated with dots, as are all domain names. For example, "en.wikipedia.org" is a hostname. Each label... (8 Replies)
Discussion started by: rahul2662
8 Replies
LEARN ABOUT PHP
crack_check
CRACK_CHECK(3) 1 CRACK_CHECK(3)crack_check - Performs an obscure check with the given passwordSYNOPSIS
bool crack_check (resource $dictionary, string $password)
DESCRIPTION
bool crack_check NULL (string $password, string $username = "", string $gecos = "", resource $dictionary)
Performs an obscure check with the given password on the specified dictionary. The alternative signature also takes into account the user-
name and the GECOS information.
Warning
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in
a future release of PHP. This function should be used at your own risk.
PARAMETERS
o $dictionary
- The crack lib dictionary. If not specified, the last opened dictionary is used.
o $password
- The password to be checked.
o $username
- The username of the account with the password.
o $gecos
- The GECOS information associated with the user account.
RETURN VALUES
Returns TRUE if $password is strong, or FALSE otherwise.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 0.3 | |
| | |
| | The $username, $gecos and $dictionary parameters |
| | were added to the alternative signature. |
| | |
+--------+---------------------------------------------------+
PHP Documentation Group CRACK_CHECK(3)