Linux Set 7
Terms
undefined, object
copy deck
- What vi command moves to the beginning of the next word?
- e
- How does Linux indicate the end of a line?
- line feed
- What option runs vi in binary mode?
- -b
- What command will reveal the purpose of a file?
- man -f filename
- Why do text files copied from Windows to Linux not work as scripts?
- Linux and Windows indicate line ends in different ways?
- How does Windows indicate a line return?
- carriage feed, line return
- How is a carriage return indicated?
- ^M
- What command will search man pages for a keyword?
- man -k keyword
- In what three directories are most commands stored?
- /bin, /usr/bin, and /usr/local/bin
- What command will remove duplicate lines from a file?
- uniq
- What is process status R?
- runnable (in run queue)
- What command will tell you where another command is located?
- which
- Why are shell commands faster than other commands?
- a new process does not have to be created
- What command will list currently-running processes?
- ps
- What key combination is used to suspend a process?
- CTRL-Z
- What is process status D?
- uninterruptible sleep (usually IO)
- What is process status S?
- sleeping
- What is process status T?
- traced or stopped
- What is process status Z?
- defunct ("zombie") process
- What is the difference between kill and kill -9?
- kill allows the program to shut itself down
- What does a "sticky bit" on a directory do?
- Restricts who can delete or rename a file in that directory
- What character represents a "sticky bit"?
- t
- What three entities can delete/rename a file when the "sticky bit" is set on the directory?
- the owner of the directory, the owner of the file, or the superuser
- What command displays password aging information?
- chage
- What command will force a password change every x days with y days warning?
- chage -M x -W y user
- What command can be used to check library dependencies?
- ldd
- What utility is used to write messages to the system file?
- logger
- In the absence of either an at.allow or at.deny file, which users are allowed to create jobs to run at different times?
- only superusers
- Where are at.allow files stored?
- /etc
- By default, who can read entries in the messages file?
- only superusers
- What filesystem is used for CD-ROMs?
- iso9660
- Is the swap filesystem mountable?
- no
- What can be done if the root password is forgotten?
- reboot into runlevel 1 and use "init=/bin/sh" as a boot option
- What is the newgrp command used for?
- changing a user's primary group
- What pseudodirectory provides information about hardware devices?
- /proc
- Where are default settings for new users copied from?
- /etc/skel
- What are inodes?
- file pointers
- What command will show inode usage?
- df -i
- What command will show free space in kilobytes?
- df -k
- Can a disk become full even if it still has free space?
- yes, if all inodes are used
- What file contains information about IRQs?
- /proc/interrupts
- What command will return a list of active network controllers?
- ifconfig
- What character is used to separate commands?
- ;
- What character is used to tell a command to run in the background?
- &
- What command is used to run a command a single time only?
- at
- Where is most locally-added software stored?
- /usr/local
- In vi, what does : do?
- allows ex commands