What shell command does the “Password Reset Remote SSH“ script execute

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What command is executed when the “Password Reset Remote SSH” is run?

The “Password Reset Remote SSH” script uses different methods for root (id=0) account (passwd that asks for only new password) and other accounts (passwd that asks for existing password and then for new passwords). This script also uses shadow account when specified to run password reset using the passwd USER command.

The script “Password Reset Remote Root” can only reset password for root account without any shadow records. However, this script could be used as an example to develop custom password reset scripts for specific scenarios not covered by “Password Reset Remote SSH” script.

The “Password Reset Remote SSH” script executed for the record without shadow record

if [ "`id -u`" -eq 0 ]; then
  passwd <<EOF\n{{NEWPWD}}\n{{NEWPWD}}\nEOF
  echo xtam passwd error code: $?
else
  passwd <<EOF\n{{OLDPWD}}\n{{NEWPWD}}\n{{NEWPWD}}\nEOF
  echo xtam passwd error code: $?
fi

The “Password Reset Remote SSH” script executed for the record with shadow record

sudo -S passwd {{LOGIN}} <<EOF\n{{NEWPWD}}\n{{NEWPWD}}\nEOF
echo xtam passwd error code: $?