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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

Top Tags



Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Commands using getent from sorted by
Terminal - Commands using getent - 16 results
getent hosts <host>
getent passwd `whoami` | cut -d ':' -f 5
2013-12-05 01:37:44
User: timhughes
Functions: cut getent passwd

Doesn't require finger and should work whatever the underlying auth mechanism is

getent group <group>
getent passwd | cut -d: -f1 | sort
for user in $(getent passwd|cut -f1 -d:); do echo "### Crontabs for $user ####"; crontab -u $user -l; done
2012-07-11 13:06:17
User: harpo
Functions: crontab cut echo getent
Tags: crontab getent

added echo "### Crontabs for $user ####"; to make clear whose crontab is listed.

getent services <<service>>
getent passwd $(whoami) | echo "$(perl -ne '/^([^:]+):[^:]+:[^:]+:[^:]+:([^ ]+) ?([^,]+)?,([^,]*),([^,]*),([^:,]*),?([^:,]*)/ and printf "MECARD:N:$3,$2;ADR:$5;TEL:$4;TEL:$6;EMAIL:$1@"')$HOSTNAME;;" | qrencode -o myqr.png
2011-07-25 12:59:57
User: Strawp
Functions: echo getent passwd
Tags: perl qr qrencode

If your contact information was entered when your user account was created (it gets added to /etc/passwd) then this gets that info and creates a QR code for you automatically

getent passwd $(whoami) | cut -f 5 -d: | cut -f 1 -d,
getent services <port_number>
getent hosts google.com | awk '{print $1}'
2010-11-03 12:02:05
User: depesz
Functions: awk getent

has the benefit of being a bit more cross-platform.

getent hosts positon.org | cut -d' ' -f1
2010-08-11 09:06:39
User: dooblem
Functions: cut getent
Tags: getent

I just wanted a simple DNS request.

Because host and nslookup commands are not on all systems, we use getent instead.

Thanks aulem for that tip.

getent passwd | awk -F: '($3>600) && ($3<10000) && ($3>maxuid) { maxuid=$3; } END { print maxuid+1; }'
getent shadow | grep '^[^:]\+:!' | cut -d: -f1
getent shadow | while IFS=: read a b c; do grep -q '!' <<< "$b" && echo "$a LOCKED" || echo "$a not locked"; done
2009-12-18 15:24:19
User: sputnick
Functions: echo getent grep read
man 5 shadow

I think it's more reliable, because

passwd -S

dont show "locked" but "L" as second field on my Archlinux for a particular user.

( unixhome alternative ).

getent passwd|cut -d: -f1|xargs -n1 passwd -e
2009-11-18 19:46:15
User: romulusnr
Functions: cut getent passwd xargs

Alternately for those without getent or only want to work on local users it's even easier:

cut -d: -f1 /etc/passwd|xargs -n1 passwd -e

Note that not all implementations of passwd support -e. On RH it would be passwd -x0 (?) and on Solaris it would be passwd -f.

getent [group|hosts|networks|passwd|protocols|services] [keyword]
2009-02-16 15:57:26
User: raphink
Functions: getent

getent allows to get the contents of several databases in their native file format even if they are not actually in /etc. For example, if you are using a LDAP or a DB to authenticate your users, you won't find their info by catting /etc/passwd, but "getent passwd" will concatenate /etc/passwd to the LDAP/DB.