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Top Forums UNIX for Dummies Questions & Answers What files do not contain user data? Post 302951993 by mescu on Wednesday 12th of August 2015 12:02:49 PM
Old 08-12-2015
Question What files do not contain user data?

I went to a job interview, and one of the questions that were put to me was "What files do not contain user data?", and response options were:

1. /etc/passwd
2. /etc/pasword
3. /etc/group
4. /etc/shadow
5. /etc/gshadow

I chose "2. /etc/password" and I think that is correct or not?

Thanks!
 

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RENICE(1)							   User Commands							 RENICE(1)

NAME
renice -- alter priority of running processes SYNOPSIS
renice [-n] priority [[-p] pid ...] [[-g] pgrp ...] [[-u] user ...] renice -h | -v DESCRIPTION
Renice alters the scheduling priority of one or more running processes. The following who parameters are interpreted as process ID's, process group ID's, or user names. Renice'ing a process group causes all processes in the process group to have their scheduling priority altered. Renice'ing a user causes all processes owned by the user to have their scheduling priority altered. By default, the processes to be affected are specified by their process ID's. Options supported by renice: -n, --priority The scheduling priority of the process, process group, or user. -g, --pgrp Force who parameters to be interpreted as process group ID's. -u, --user Force the who parameters to be interpreted as user names. -p, --pid Resets the who interpretation to be (the default) process ID's. -v, --version Print version. -h, --help Print help. For example, renice +1 987 -u daemon root -p 32 would change the priority of process ID's 987 and 32, and all processes owned by users daemon and root. Users other than the super-user may only alter the priority of processes they own, and can only monotonically increase their ``nice value'' (for security reasons) within the range 0 to PRIO_MAX (20), unless a nice resource limit is set (Linux 2.6.12 and higher). The super-user may alter the priority of any process and set the priority to any value in the range PRIO_MIN (-20) to PRIO_MAX. Useful priorities are: 20 (the affected processes will run only when nothing else in the system wants to), 0 (the ``base'' scheduling priority), anything negative (to make things go very fast). FILES
/etc/passwd to map user names to user ID's SEE ALSO
getpriority(2), setpriority(2) BUGS
Non super-users can not increase scheduling priorities of their own processes, even if they were the ones that decreased the priorities in the first place. The Linux kernel (at least version 2.0.0) and linux libc (at least version 5.2.18) does not agree entirely on what the specifics of the sys- temcall interface to set nice values is. Thus causes renice to report bogus previous nice values. HISTORY
The renice command appeared in 4.0BSD. AVAILABILITY
The renice command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux November 2010 util-linux
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