hai Friends
How can i check the root password of a linux system using a c program or with some shell script... I have seen many tools like webmin that authenticates the user using the root password... How do they do that... Pls help...
Thanks in advance
Collins (1 Reply)
I'm not sure if this is the right forum for this or not but we use a program called "Password Safe" to store the many root passwords we have for our Unix system.
Now we are being called out by our security team to prove that this is a safe program to use. So far I have been able to determine... (1 Reply)
Hi
While using Pipe concept ,if a user enters a "login name" and "paswword"
,then how does a child process check for user password is correct or not and give notification to parent process. (1 Reply)
Hi Guys,
I hope one of you has already done this and is kind enough to share your script with me.
I have a Solaris8 server that uses password aging for its local user accounts. I need a script that checks the age of the password and then sends the user an email if the password is about to... (3 Replies)
Hi there,
There's something I don't understand. The same string does not give the same md5 hash everytime. I wanted to find a way to check someone's password but the following script obviously shows that it's not possible that way :
ks354286:~# user=foo
ks354286:~# pw=$(mkpasswd -H md5... (3 Replies)
I need to periodically run a check on the passwords of the users (Redhat 5.0) to verify that all passwords meet minimal standards. I remember seeing a script years ago that grabbed the encrypted passwords from the file and checked if they matched any of the encrypted strings in another file, plus... (1 Reply)
I have an AIX server running 6.1. My SAN switch is reporting that it is only receiving 5.9 uWatts (micro watts) and it should be well over 100 uWatts. How can I see the transmit strength of my fiber card from within AIX? I have Emulex fiber cards. (1 Reply)
I have read the forums for strengthing the openssl ciphers on a server and the following command I can run:
openssl ciphers -v 'TLSv1+HIGH:!SSLv2:RC4!MEDIUM:!aNULL:!eNULL:!3DES:!EXPORT:@STRENGTH'
I have some services that cannot be set to higher levels like you can set in an httpd.conf file.... (1 Reply)
Discussion started by: hydrashok158
1 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)