unix commands list

1 PackageAlgorithms.util;2 3 /******************************************************************************4 * Compilation:javac Directory.java5 * Execution:java Directory directory-name6 * Dependencies:Queue.java Stdout.java7 * 8 * Prints out all of the files in the given directory and any9 * subdirectories in Level-order by using a queue. Also PrintsTen * out their file sizes in bytes. One * A *% java Directory. - * - *********************************************************************

When you are maintaining Oracle, you can use some Unix operating system commands to view system-related information under various operating systems. Memory ------- Aix:bootinfo-r LSATTR-E-LMEM0 /USR/SBIN/LSATTR-E-L sys0-a Realmem Or use a tool as "Topas" or "Nmon" (These are utilities) Linux:cat/proc/meminfo /USR/SBIN/DMESG | grep "Physical" Free (the free command) HP:/usr/sam/lbin/getmem grep me

variables and their current values. All: lists all options. Term: Set the terminal type Ignorance: Case Insensitive in search List: displays the stop table (Ctrl + I) and end mark ($) Number: displays the row number. Report: displays the number of changes made by line-oriented commands. Terse: displays brief warning information Warn: NO write information is displayed if the current file is not saved when i

Od The OD (octal dump) filter will convert the input (or file) to octal or other hexadecimal. You need to view This command is useful when processing binary data files or an unreadable system device file, For example,/dev/urandom, or a binary data filter. DdThis is also a well-known tool, but it is a frightening "Data Replication" command.It is used to exchange data between a Unix microcomputer and an IBM mainframe through tape. This command still ha

It took me two days to sort it out, and some of the most common commands that people on earth know would be skipped! Finally, download the pdf manual. command to change the archive owner: chown [-cfhvR] [-- help] [-- version] user [: group] file... function: Change the file or folder owner parameter format: user of the new file owner IDgroup: user group of the new file owner-c: if the archive owner has changed, the change action is displayed.-f: If th

Hp unix has maintained a high market share in large enterprise-level hosts. For its top commands, I have read some documents before. Here I will summarize how to analyze the contents. 1.TopThe command syntax is as follows: Top [-s time] [-D count] [-q] [-u] [-H] [-N number] [-f filename] -S time: set the screen refresh latency, in seconds. The default value is 5 seconds. -D count: set the number of screen r

BKJIA: In this article, we will introduce six cool and practical Unix/Linux tools. From viewing the weather through your terminal to letting a system administrator teach you how to complete a difficult task, there is almost no clue. Interestingly, most of these tools were released decades ago! Please let me know ...... Mentoring dialogue: kibitz Kibitz is a terminal tool mainly used by a "master" to help him/her "apprentice )". Essentially, it provide

Introduction: Most Java programmers use some sort of tracking system to track potential bugs and problems with code in development. However, multithreading and multi-platform environments can generate a lot of puzzling trace data. In this article, software engineer Daniel Would provides some tips to help you understand the trace data that is generated in a complex application. You will learn how to use the Open source logging package log4j to generate a log file that contains rich information. Y

%si, 0.0%stMem: 3924872k total, 3438424k used, 486448k free, 529588k buffersSwap: 7574520k total, 0k used, 7574520k free, 1873432k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND29561 root 20 0 105m 1096 728 R 99.6 0.0 1:06.54 bash 695 root 20 0 0 0 0 S 0.3 0.0 4:35.89 vmmemctl29562 root 20 0 15024 1388 1008 R 0.3 0.0 0:00.13 top 1 root 20 0 19228 1532 1248 S 0.0 0.0 0:11.67 init 2 root

already exists: If the size of the new value is smaller or equivalent than the value already exists, overwrite the old value directly; If the new value is larger than the value already exists, then we must make a new memory space for the new value malloc, copy the new value into that memory, and replace the pointer to the old value with a pointer to the new value. If we add an environment variable: First we need to call malloc to allocate space for the string n

The DF command is a commonly used command for viewing hard disk information. The main parameters are as follows: DF-A: displays the disk usage of all file systems, including 0 block file systems.DF-I: displays the I node information, not the disk block.DF-T: displays the disk space usage of each specified type of file system.DF-X: List disk space usage of a file system of a specified type.DF-T: displays the file system type.DF in 512 bytes DF-K: in

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