#!/bin/sh
#
# @(#)set_root_pw 1.4 93/12/23 SMI
#
# This is an example bourne shell script to be run after installation.
# It sets the system's root password to the entry defined in PASSWD.
# The encrypted password is obtained from an existing root password entry
# in /etc/shadow from an installed machine.
echo "setting password for root"
# set the root password
[Sets the variable PASSWD to an encrypted root password obtained from an existing entry in a system's /etc/shadow file.] PASSWD=dKO5IBkSF42lw
#create a temporary input file
[Creates a temporary input file of /a/etc/shadow.] cp /a/etc/shadow /a/etc/shadow.orig
mv /a/etc/shadow /a/etc/shadow.orig
nawk -F: '{
[Changes the root entry in the /etc/shadow file for the newly installed system using $PASSWD as the password field.] if ( $1 == "root" )
printf"%s:%s:%s:%s:%s:%s:%s:%s:%s\n",$1,passwd,$3,$4,$5,$6,$7,$8,$9
else
printf"%s:%s:%s:%s:%s:%s:%s:%s:%s\n",$1,$2,$3,$4,$5,$6,$7,$8,$9
}' passwd="$PASSWD" /a/etc/shadow.orig > /a/etc/shadow
[Removes the temporary /a/etc/shadow file.] #remove the temporary file
rm -f /a/etc/shadow.orig
[Changes the entry from 0 to a 1 in the state file, so that the user will not be prompted for the root password. The state file is accessed using the variable SI_SYS_STATE, whose value currently is /a/etc/.sysIDtool.state. (To avoid problems with your scripts if this value changes, always reference this file using $SI_SYS_STATE.) The sed command shown here contains a tab character after the 0 and after the 1.] # set the flag so sysidroot won't prompt for the root password
sed -e 's/0 # root/1 # root/' ${SI_SYS_STATE} > /tmp/state.$$
mv /tmp/state.$$ ${SI_SYS_STATE}
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