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location Florida
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visits member for 1 year, 11 months
seen 11 hours ago

A Perl enthusiast, I earn my living doing Unix/Linux system administration and light systems programming. In a former life I was an ALGOL systems programmer before finding my real love was for Unix. My education is scientific with a Master of Science degree.


May
18
revised How is yum atomicity ensured?
added 255 characters in body
May
18
answered How is yum atomicity ensured?
Apr
14
answered HOWTO check if a user account is blocked against /etc/shadow
Apr
11
awarded  Civic Duty
Apr
10
answered Find records dated before today
Apr
1
comment Why do I need a tty to run sudo if I can sudo without a password?
@StephaneChazelas +1 for enlightening me that it's largely indigenous to Red Hat and its siblings and another ++ if I could for the current bug report!
Apr
1
answered Why do I need a tty to run sudo if I can sudo without a password?
Mar
30
answered lvm: what's the purpose of a Volume Group?
Mar
28
answered What's the recommended way to run a service as a non-root user?
Mar
28
answered How to find the underlying disks of a mirrored volume in LVM (linux)?
Mar
20
revised Which directories are writeable in a system following FHS?
Restore `find` option for portability and add note of GNU enhancement
Mar
20
comment Which directories are writeable in a system following FHS?
@MichaelKjörling Updated answer to reflect this.
Mar
20
revised Which directories are writeable in a system following FHS?
added 60 characters in body
Mar
20
revised Which directories are writeable in a system following FHS?
deleted 8 characters in body
Mar
20
answered Which directories are writeable in a system following FHS?
Mar
13
answered What's the difference between “==” and “=~”?
Mar
12
reviewed Reject suggested edit on Convert unix time from variable to normal time in AIX
Mar
12
answered Convert unix time from variable to normal time in AIX
Jan
30
comment How does Linux “kill” a process?
I'd add that since a kill -9 can't be caught, a process receiving it can't perform any cleanup (e.g. removing temporary files, freeing shared memory, etc.) before it exits. Hence, use kill -9 (a.k.a kill -kill) only as a last resort. Begin with a kill -hup and/or kill -term first and then use kill -kill as the final blow.
Jan
28
answered set umask (permissions) similarly as setgid on a directory