unix commands

CTRL + N, it is equivalent to the general display of the up arrow Ctrl + R: Number prompt, based on the user input to find the relevant historical commands (reverse-I-search) **************************************** **************************************** ********************Frequently Used shortcut keys: Alt + F move the cursor forward (forward) to the next word Alt + B move the cursor back (backward) to the previous word Ctrl + W Delete the word f

current rowO: open a new row above the current row.R: Replace the current characterR: Replace the current and subsequent characters until you Press ESC.S: Starting from the current cursor position, replace the specified number of characters with the input textS: delete a specified number of rows and replace them with the input textNCW or NCW: modify a specified number of charactersNCC: modifies a specified number of rows. DELETE commandNdw or ndw: n-1 characters starting at and following the c

the hard disk space and usage. in Linux, the parameter H can be used to display more user-friendly results. For example:DF-H hard drive space display by userDF-K hard disk space is displayed in KBDF-M hard disk space is displayed in MB W: displays the list of users logging on to the server. The following commands are only applicable to Linux Lsof: displays the list of currently opened files, including established socket connections. This command can

DF Command verbose usage A: Displays all file systems and disk usage scenarios for each partition I: Show the usage of i-nodes K: size is denoted by K (default value) T: Displays all partition disk usage for one file system X: Displays all partitions that are not part of a file system disk usage T: Displays the name of the file system to which each partition belongs Common commands: Df-hi Detailed operation Instruction DF can show the maximum a

File2 to the file3.Cat File1–file2–file3:???od: Octal, Decimal, hex, ASCII dumpLess:which: Locate a program file in the user ' s path.Find : Find. -name "*.C"-printfile: Determine file type.Head: Display first lines of a file. head-10 filename.　　tail: Display The last part of a file.cut: Cut out selected portions of each lie of a flie.colrm: Remove columns from a file. COLRM 8 filenamediff: Compare files on line.sort: Sort lines of text file.uniq: report or filter out repeated lines in a file.C

Level: Intermediate By Michael Stutz From: IBM developerworks China Link: http://www.ibm.com/developerworks/cn/aix/library/au-badunixhabits.html When you often use a system, it is often in a fixed usage mode. Sometimes, you do not get into the habit of doing things in the best way possible. Sometimes, your bad habits may even lead to confusion. One of the best ways to correct such defects is to consciously adopt the good habits of resisting these bad habits. This article presents 10

have already been involved in programming on unix, but they have not yet formed experience and knowledge systems. Without linux operation experience, you cannot directly view this book. Even if you have a lot of linux O M (Common commands, linux system mechanisms, file systems, pipelines, process features, shell scripts) but without a complete C language, data structure, and a little knowledge of operatin

Recently used Unix time to convert applications in MySQL and. Net. Keep this information in your blog.How to get the present in different programming languages Unix time Stamp (Unix timestamp) ? Java Time Javascript Math.Round (New Date (). GetTime ()/1000)GetTime () The unit of return value is milliseconds Mic

Article Title: UNIX and UNIX-like system security check notes. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Here are some personal experience notes. I believe it is useful for UNIX or U