| Work on the command line | • Use single shell commands and one line command sequences to perform basic tasks on the command line.
• Use and modify the shell environment including defining, referencing and exporting environment variables.
• Use and edit command history.
• Invoke commands inside and outside the defined path. | • bash
• echo
• env
• export
• pwd
• set
• unset
• type
• which
• man
• uname
• history
• .bash_history
• Quoting |
| Process text streams using filters | • Send text files and output streams through text utility filters to modify the output using standard UNIX commands found in the GNU textutils package. | • bzcat
• cat
• cut
• head
• less
• md5sum
• nl
• od
• paste
• sed
• sha256sum
• sha512sum
• sort
• split
• tail
• tr
• uniq
• wc
• xzcat
• zcat |
| Perform basic file management | • Copy, move and remove files and directories individually.
• Copy multiple files and directories recursively.
• Remove files and directories recursively.
• Use simple and advanced wildcard specifications in commands.
• Using find to locate and act on files based on type, size, or time.
• Usage of tar, cpio and dd. | • cp
• find
• mkdir
• mv
• ls
• rm
• rmdir
• touch
• tar
• cpio
• dd
• file
• gzip
• gunzip
• bzip2
• bunzip2
• xz
• unxz
• file globbing |
| Use streams, pipes and redirects | • Redirecting standard input, standard output and standard error.
• Pipe the output of one command to the input of another command.
• Use the output of one command as arguments to another command.
• Send output to both stdout and a file. | • tee
• xargs |
| Create, monitor and kill processes | • Run jobs in the foreground and background.
• Signal a program to continue running after logout.
• Monitor active processes.
• Select and sort processes for display.
• Send signals to processes. | • &
• bg
• fg
• jobs
• kill
• nohup
• ps
• top
• free
• uptime
• pgrep
• pkill
• killall
• watch
• screen
• tmux |
| Modify process execution priorities | • Know the default priority of a job that is created.
• Run a program with higher or lower priority than the default.
• Change the priority of a running process. | • nice
• ps
• renice
• top |
| Search text files using regular expressions | • • Create simple regular expressions containing several notational elements.
• Understand the differences between basic and extended regular expressions.
• Understand the concepts of special characters, character classes, quantifiers and anchors.
• Use regular expression tools to perform searches through a filesystem or file content.
• Use regular expressions to delete, change and substitute text. | • grep
• egrep
• fgrep
• sed
• regex(7) |
| Basic file editing | • Navigate a document using vi.
• Understand and use vi modes.
• Insert, edit, delete, copy and find text in vi.
• Awareness of Emacs, nano and vim.
• Configure the standard editor. | • vi
• /, ?
• h,j,k,l
• i, o, a
• d, p, y, dd, yy
• ZZ, :w!, :q!
• EDITOR |
