CT320: Network and System Administration

Fall 2018

Google

See this page as a slide show

CT320 Google

One size does not fit all

Google is the best search engine ever. However, that doesn’t mean that it’s the right tool for all jobs.

Try Googling:

Better Googling

OK, fine—we can do better than that:

Great! That worked! Or … did it?

Versions

There are many versions of Linux. When you Google “linux cat”, which version of cat does it tell you about?

man

% man cat
CAT(1)                           User Commands                          CAT(1)

NAME
       cat - concatenate files and print on the standard output

SYNOPSIS
       cat [OPTION]... [FILE]...

DESCRIPTION
       Concatenate FILE(s) to standard output.

       With no FILE, or when FILE is -, read standard input.

       -A, --show-all
              equivalent to -vET

       -b, --number-nonblank
              number nonempty output lines, overrides -n

       -e     equivalent to -vE

       -E, --show-ends
              display $ at end of each line

       -n, --number
              number all output lines

       -s, --squeeze-blank
              suppress repeated empty output lines

       -t     equivalent to -vT

       -T, --show-tabs
              display TAB characters as ^I

       -u     (ignored)

       -v, --show-nonprinting
              use ^ and M- notation, except for LFD and TAB

       --help display this help and exit

       --version
              output version information and exit

EXAMPLES
       cat f - g
              Output f's contents, then standard input, then g's contents.

       cat    Copy standard input to standard output.

AUTHOR
       Written by Torbjorn Granlund and Richard M. Stallman.

REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report cat translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2018  Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       tac(1)

       Full documentation at: <https://www.gnu.org/software/coreutils/cat>
       or available locally via: info '(coreutils) cat invocation'

GNU coreutils 8.30                 July 2018                            CAT(1)

A better solution is to use the man command, from a terminal, to tell you about the version of cat that’s installed.

(% is my prompt.)

User: Guest

Check: HTML CSS
Edit History Source

Modified: 2018-06-24T18:00

Apply to CSU | Contact CSU | Disclaimer | Equal Opportunity
Colorado State University, Fort Collins, CO 80523 USA
© 2018 Colorado State University
CS Building