
whiptail:tldr:30c2e
whiptail: Display a password input box.
$ ${result_variable_name}="$(whiptail --title "${title}" --passwordbox "${message}" ${height_in_chars} ${width_in_chars} 3>&1 1>&2 2>&3)"
try on your machine
This command is using the whiptail
utility to display a password input dialog box and store the user's input in a variable called result_variable_name
.
Here is the breakdown of the command:
${result_variable_name}
: This is the name of the variable where the result of thewhiptail
command will be stored.-
"$(whiptail --title "${title}" --passwordbox "${message}" ${height_in_chars} ${width_in_chars} 3>&1 1>&2 2>&3)"
: This is a command substitution that captures the output of thewhiptail
command and assigns it to theresult_variable_name
variable. Let's break it down further:whiptail --title "${title}" --passwordbox "${message}" ${height_in_chars} ${width_in_chars}
: This invokes thewhiptail
utility with specific options to configure the password input dialog box. The${title}
,${message}
,${height_in_chars}
, and${width_in_chars}
variables are dynamically populated with their respective values.3>&1 1>&2 2>&3
: These redirections are used to redirect file descriptor 1 (stdout) to file descriptor 2 (stderr) and file descriptor 2 (stderr) to file descriptor 1 (stdout). This is done to handle the 3rd file descriptor (3
) as a temporary intermediate to swap the redirections, allowing thewhiptail
command to capture the user's input correctly.
Overall, this command opens a password input dialog using whiptail
and stores the entered password in the result_variable_name
.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.