Linux Command Review (-)

Chown

Chownusername: groupnamefilename can change the user owner and group owner of filename ..

Cp
If the source contains the directory name, the files under the directory are copied to the destination in sequence ..

Cut
The cut-cnum1-num2filename displays the text from num1 to num2 ..

Find
Find.-name "*. java" lists all extension names in the current directory and its sub-directories as java files ..
Find.-The cmin-20 lists all the files that have been updated in the last 20 minutes under the current directory and Its subdirectories ..
Find.-ctimen columns the files modified in the past n days ..
Lnsourcedist
-F: when the link is closed, the file with the same name as dist is deleted first ..
-S: Soft link.
-B: Back up the files that will be overwritten or deleted during the link ..
-SSUFFIX: adds the backup file to the end of SUFFIX ..
-- Help
-- Version
Lnyyxx generates a symboliclink-: zz for the file yy ..
Lnyyxx generates a hardlink: zz for the file yy ..
Ls
-T: lists the archives in the order of creation time ..
-R: displays the files in reverse alphabetical order )..
Ls-ltrs * lists all files whose names start with s in the current working directory. ..
More
-S: when there are more than two consecutive blank rows, it is replaced by a blank row ..
+ Num: displays the data starting from row num ..
-Num: the number of rows displayed at a time ..
Mv
-I: If the destination already has an archive with the same name. First, ask whether to overwrite the old file ..
Mv-I *. cjj moves all C language programs to the jj directory ..
Rm
-I: Ask for confirmation one by one before deletion ..
-F: even if the original file attribute is set to read-only. You can also delete it directly. Confirmation is not required ..
-R: delete directories and subdirectories one by one ..
Rmdir
-P: When a subdirectory is deleted, it becomes an empty directory. Delete one by one ..
Rmdiraa deletes the directory named aa in the working directory ..
Split
-L: specify the number of lines of the split file to split ..
-B: specify the size of the split file ..
Split-l200large_file.txtnew_file.txt
Split-b10mlarge_file.txtnew_file.txt
Cat
1: displays the entire file at a time .. Catfilename
2: create a file from the keyboard .. Cat> filename can only create new files. You cannot edit an existing file ..
3: Merge several files into one. Catfile1file2> file
-N: starts from the beginning to number all rows.
-S is replaced with a blank row when there are two consecutive rows or more ..
-B: blank rows are not numbered ..
Cat-bfile1file2> file3 Add the contents of file1 and file2 to the end of file3 ..
Cat/dev/dull>/etc/test.txtthe test.txt file is thrown into the garbage bin. Empty value text.txt
Date
Date092919582013 set the system time to 2010/9/29/19 :58
Touch
-C: if the target file does not exist. No new files will be created
-T: set the date and time in the same format as date.
-D: set the time and date. You can set different formats.
Touch-c-t09291958filename
Touch-d "05/06/2013" filename
Touch-d "6:03 pm" filename
Touch-d "6: 03pm05/06/2000" filename
Cal
-M: display on Monday every week as the first day
-Y: indicates the renewal of this year.
Cal92013
Cal-jy displays the calendar of this year based on the number of days on the first day of each month.
Time: used to determine the time consumed during command execution and system resources.
Uptime: the current time. The time when the system is started. The number of connected users. System load for the last minute or five minutes ..
Chfn: provides users with the ability to change personal information ..
Chsh: Change the user's shell settings
Passwd
-D: Disable the user's password authentication function. You do not need to enter a password when logging on. Only users with root permissions can use this function ..
-S: display the user's password authentication type. Only users with root permissions can use this function ..
Passwd-dusername

This article is from the "hagar" blog, please be sure to keep this source http://7832308.blog.51cto.com/7822308/1303583