4,909 reputation
11625
bio website keith-s-thompson.github.com
location San Diego, CA
age 55
visits member for 3 years, 1 month
seen yesterday

I'm a programmer and all-around nerd living in San Diego, California.
I work at JetHead Development Inc.

E-mail: Keith.S.Thompson@gmail.com


Sep
30
awarded  Explainer
Sep
28
awarded  Good Answer
Sep
24
revised C Shell Array Declaration Syntax, () vs {}
Typo
Sep
17
comment Can I make text in xterm looks and feels like gnome-terminal?
@peterph: I think you missed something. See my answer.
Sep
17
answered Can I make text in xterm looks and feels like gnome-terminal?
Sep
17
awarded  Pundit
Sep
14
comment Why does “tail -f … | tail” fail to produce any output?
What are the last 10 digits of π?
Sep
14
comment Why is number of open files limited in Linux?
@Lothar: Interesting. I wonder why the limits would differ. Given the fileno and fdopen functions I'd expect them to be nearly interchangeable.
Sep
12
comment What is the command for listing all users who are members of the admin group?
visudo edits the sudoers file; use it only if you want to modify it (yes, that's what the OP indirectly asked about). If you just want to view it, cat /etc/sudoers or less /etc/sudoers is sufficient. (You'll need root privileges for any of these, so sudo cat /etc/sudoers, for example.)
Sep
5
awarded  Nice Answer
Sep
3
awarded  Yearling
Aug
15
awarded  Good Answer
Aug
12
revised Valid screen session names
added 25 characters in body
Aug
12
answered Valid screen session names
Aug
10
comment id command doesn't show all user's groups
The /etc/group file is the default way group information is stored. Systems can supplement it with other sources such as YP/NIS and LDAP. The id and getent commands will query whatever source(s) the system uses. (Likewise for /etc/passwd and several other databases).
Aug
4
awarded  Revival
Jun
24
revised Is there any harm in using variables that aren't set?
Formatting
Jun
23
comment What does the period indicate when an environmental variable is set like “VARIABLE_NAME=.”
@godlygeek: The root directory does have a .. entry. Another way to look at it is that every directory has a .. entry pointing to its parent -- and the root directory / is its own parent.
Jun
20
comment How to tell “cat” command to not hang on when there is no path provided?
cat "" doesn't hang, but it does print an error message: cat: : No such file or directory (referring to the empty string). It's better to test whether $1 exists, probably by checking the value of $#.
Jun
20
comment Fedora 20. Authentication requires a different password from su
su requires the password for the target account, root by default. Have you tried using sudo, which requires your password?