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deviousway/linux_migrate_users.txt

Last active October 1, 2018 03:32
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linux copy/migrate users from one server to another
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linux_migrate_users.txt
mkdir move/
export UGIDLIMIT=500
awk -v LIMIT=$UGIDLIMIT -F: '($3>=LIMIT) && ($3!=65534)' /etc/passwd > /root/move/passwd.mig
awk -v LIMIT=$UGIDLIMIT -F: '($3>=LIMIT) && ($3!=65534)' /etc/group > /root/move/group.mig
awk -v LIMIT=$UGIDLIMIT -F: '($3>=LIMIT) && ($3!=65534) {print $1}' /etc/passwd | tee - |egrep -f - /etc/shadow > /root/move/shadow.mig
cp /etc/gshadow /root/move/gshadow.mig
scp -r /root/move/* [email protected]:/path/to/location
mkdir /root/newsusers.bak
cp /etc/passwd /etc/shadow /etc/group /etc/gshadow /root/newsusers.bak
cat passwd.mig >> /etc/passwd
cat group.mig >> /etc/group
cat shadow.mig >> /etc/shadow
cp gshadow.mig /etc/gshadow
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