发布时间：2015-02-09 14:21:37

http://linuxcommand.org/lc3_lts0090.phpFile PermissionsIn the diagram below, we see how the first portion of the listing is interpreted. It consists of a character indicating the file type, followed by three sets of three characters that convey the reading, writing and execution permission for .........【阅读全文】

发布时间：2015-02-09 14:01:30

http://linuxcommand.org/lc3_lts0080.phpIf you need to suppress all expansions, you use single quotes. Here is a comparison of unquoted, double quotes, and single quotes:[me@linuxbox me]$ echo text ~/*.txt {a,b} $(echo foo) $((2+2)) $USERtext /home/me/ls-output.txt a b foo 4 me[me@l.........【阅读全文】

发布时间：2015-02-09 13:26:28

http://linuxcommand.org/lc3_lts0050.phpWildcardMeaning*Matches any characters?Matches any single character[characters].........【阅读全文】

发布时间：2015-02-09 11:45:39

find . -type f -print | wc -lDisplays the total number of files in the current working directory and all of its subdirectories.http://linuxcommand.org/lc3_man_pages/wc1.html......【阅读全文】

发布时间：2015-02-09 11:43:33

http://linuxcommand.org/lc3_lts0070.phpdu | sort -nrDisplays a list of directories and how much space they consume, sorted from the largest to the smallest.......【阅读全文】