//View Tip #885
» Get latest stable version of the Linux kernel
» Find and Grep
» Find occurrences of a string in a large code base without firing
» Find occurrences of a string in a large code base without firing
Steve Drees
Andrew
Jim Goltz
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» Get real names of current users» Get latest stable version of the Linux kernel
» Find and Grep
» Find occurrences of a string in a large code base without firing
» Find occurrences of a string in a large code base without firing
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Generate a random 8 character password containing a-z, A-Z and 0-9:
egrep -ioam1 '[a-z0-9]{8}' /dev/urandomComments
Add your comment
Steve Drees#1
On linux I greatly prefer to use pwgen.
Posted 2009-09-16 08:51:00
Andrewegrep -oam1 '[A-Za-z0-9]{8}' /dev/random
works much better for me. Dropping the -i option and including A-Z in the regexp speeds it up alot.
works much better for me. Dropping the -i option and including A-Z in the regexp speeds it up alot.
Posted 2009-09-16 10:33:36
There's a perl program that already does this called makepasswd. To use:
makepasswd --chars=20
or you can even add it directly to a user:
usermod -p `makepasswd --chars=20` user
makepasswd --chars=20
or you can even add it directly to a user:
usermod -p `makepasswd --chars=20` user
Posted 2009-09-21 05:57:58
Jim GoltzNone of these work verbatim on Solaris 10. In Solaris Land, "egrep" has no "o", "a", or "m" options and "head" has no "c" option. Also, stock "egrep" doesn't support "{}".
Slight correction: the "openssl" trick does work.
Slight correction: the "openssl" trick does work.
Posted 2009-11-12 10:50:34
