How to Input Password in Shell Script as Hidden Characters

1. How do I hide password in expected script?
2. How do I hide a password when typing in Unix?
3. How do I make my Linux password invisible?
4. How do I password protect a shell script?
5. How do you put a password on a script?
6. How do I pass a username and password in bash script?
7. How do I find Sudo password?
8. How do I find my username and password in Linux?
9. What do I do if I forgot my Sudo password?
10. How do you password protect a file in Unix?
11. How do I lock a file in Linux?
12. What do you know about password protection in Linux?

How do I hide password in expected script?

When you send password through expect, if you do a 'ps', you can view the entire command with the password. To avoid this, you can call expect script from another bash script sending at about 500 character random string and then the password. Then on expect script you can call password as $1 variable.

How do I hide a password when typing in Unix?

Use read -s to not echo the input, i.e. show nothing when the user types the password: read -p 'Password? ' -s password echo Your password is "$password".

How do I make my Linux password invisible?

Use -s for silent mode. Using -s input characters are not echoed. For example create a shell script named inputpwd.sh and add following content. Let's execute the script and enter your password, You just enter your password, characters will not display on-screen.

How do I password protect a shell script?

Linux or UNIX password protect files

1. Use GNU gpg command.
2. Use mcrypt command.
3. Use openssl command.

How do you put a password on a script?

Copy the above encrypted string and confirm it by decryption. So it must provide a decrypted password as. If it works fine, then you can simply save it into a file and use it within your script. Encrypt it and save it into a hidden file.

How do I pass a username and password in bash script?

How to pass Username and password to an application using shell script?

1. Go to perticular directory,(My script=> cd /ld62_prod)
2. Give one command which will launch application(My script=> drv)
3. Application will launch and cursor will be pointing where i need to give username.

How do I find Sudo password?

If you want to elevate that entire command session to root privileges type 'sudo su', you will still need to enter the password to your account. Show activity on this post. Sudo password is the password that you put in the instalation of ubuntu/yours user password, if you don't have a password just click enter at all.

How do I find my username and password in Linux?

The /etc/shadow file stores contain the password information for the user account and optional aging information.
...
Say hello to getent command

1. passwd – Read user account info.
2. shadow – Read user password info.
3. group – Read group info.
4. key – Can be a user name/group name.

What do I do if I forgot my Sudo password?

How to Reset Forgotten Root Password in Ubuntu

1. Ubuntu Grub Menu. Next, press the 'e' key to edit the grub parameters. ...
2. Grub Boot Parameters. ...
3. Find Grub Boot Parameter. ...
4. Locate Grub Boot Parameter. ...
5. Enable Root Filesystem. ...
6. Confirm Root Filesytem Permissions. ...
7. Reset Root Password in Ubuntu.

How do you password protect a file in Unix?

Using gpg, you would do the following.

1. Open a terminal window.
2. Change to the ~/Documents directory with the command cd ~/Documents.
3. Encrypt the file with the command gpg -c important. docx.
4. Enter a unique password for the file and hit Enter.
5. Verify the newly typed password by typing it again and hitting Enter.

How do I lock a file in Linux?

Locking files with flock. One common way to lock a file on a Linux system is flock . The flock command can be used from the command line or within a shell script to obtain a lock on a file and will create the lock file if it doesn't already exist, assuming the user has the appropriate permissions.

What do you know about password protection in Linux?

7 Tools to Encrypt/Decrypt and Password Protect Files in Linux

1. GnuPG. GnuPG stands for GNU Privacy Guard and is often called as GPG which is a collection of cryptographic software. ...
2. bcrypt. bcrypt is a key derivation function which is based upon Blowfish cipher. ...
3. ccrypt. ...
4. Zip. ...
5. Openssl. ...
6. 7-zip. ...
7. Nautilus Encryption Utility.