Linux

Home

Get App

Take Quiz

Create

You know the file name, but don't know where the file is located. How can you find it?
find <search point> -name 'filename' -print
- If you only know part of the filename
- find / -name '*partial*' -print
How do you compress a file?
- gzip <filename>
- gunzip <filename.gz>
- tar -cvf
- c creates a new archive
- v verbose
- f makes it a file
How do you use chmod? What are the numbers that determine permissions?
chmod <nnn> filename
- 0 = no access
- 1 = execute only
- 2 = write only
- 3 = write and execute
- 4 = read only
- 5 = read and execute
- 6 = read and write
- 7 = read write and execute
What are some common options that can be used with the command ls?
- -a lists all filenames
- -A lists most filenames (excludes . and .. files)
- -C lists filenames in a column format
- -d lists directory names instead of contents
- -f lists file names unsorted
- -F lists filenames classified by file type
- -l lists filenames in long format
- -lh lists filenames in long format and human readable
- -lg lists filenams in long format but omits group information
- -r lists filenames reverse sorted
- -R lists filenames in the specified directory and subdirectories
- -s lists filenames and their size in kilobytes
- -S lists filenames assorted by size
- -t lists filenames sorted by time modified
- -U lists filenames without sorting
- -x lists filenames in rows instead of columns
What are some regular expressions used in linux?
- *Matches 0 or more occurrences of the previous character
- ?Matches 0 or 1 occurrences of the previous character
- + Matches 1 or more
- .Matches 1 character of any type
- […]Matches one character from the range specified within the braces
- [^…] Matches one character NOT from the range specified within the braces
- {}Matches a specific number or range of the previous character
- ^ Matches the following characters if they're the first characters on the line
- $Matches the previous letter characters if they're the last
- (…|…) Matches either of two sets of characters

Author

cnapalm

13976

Card Set

Linux

Description

Linux +

Updated

2010-04-11T23:30:13Z