/usr/bin/passwd offers a "safe way" for root to edit /etc/passwd (or shadow). If setuid it allows regular users to change passwd without asking root to do changes for them.
(note: does have learning curve on args to choose)
gnupasswd - gnu change user password
gnugpasswd - gnu change group password
gnupasswd(1) has a goal to work with older login.c/linux and some newer too, also "getpwent" (any glibc). or help convert.
gnupassd does pass only: leaves all else alone (compat). ...
Do you want to edit your /etc/dhcpd.conf file in simple way? Dhadmin is just for you. At startup it parses /etc/dhcpd.conf and then displays contents using nice text interface. After that you may change contents and save the file.
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