COMP 206 Final Cheat Sheet

pwd	print working directory
touch	create file
cat	display file
>	redirect output to file
>>	append output to file
\|	pipe to another command
diff file1 file2	compare two files
ln / ln -s	create hard (alt name) / symbolic (new file that auto-redirects) link
sort file	sort lines
wc file	word count

cp, mv, and rm options: -i confirmation prompt; -f force, -r recursively visit subdirectories

*	any pattern
?	any single character
[xyz] / [x-z]	any of these / any within the range

Globbing: Shell interprets wildcards as the list of all matching pathnames

grep 'STRING' FILE_LIST	finds occurrences of STRING within FILE_LIST
-i	ignore case
-c	return only count: # of matching lines
-v	inverted search (return only non-matches)
-n	display line number with matching line
-l	list only file names

tar -	combine several files into one
-c	create new tar archive
-r	update tar archive
-x	extract from tar archive
-f	specify archive file name
-v	verbose mode
-z	compress archive w gzip
gzip	compress a single file

A regular tar archive file ends with .tar; a gzipped tar archive file ends with .tgz

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COMP 206 Final Cheat Sheet (DRAFT) by asterythm