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section7 Perl is another scripting language which combines all of these features but is not installed as standard on all systems. Grep and egrep are similar, the main difference being that egrep allows more complex expressions. is a special character which matches any character in an expression. This example matches any single digit 0 to 9. Nawk is a powerful context based script language. Hipparcos and Tycho Data structures and Load routines in C May 14, 1997 34 above features in a very fast language. Thesplit operator allows a line of input to be split into fields according to a field separator which is a regular expression. unix_nutshell http://www.cs.northwestern.edu/~pdinda/ics-f02/doc/unix_nutshell.pdf If there is both a command and an interface by a given name, man will tell you the command. For example, pipes are anonymous, being implicitly named by the processes at their endpoints. File descriptors are a central concept in Unix. This open will block until someone opens thefifo for writing. We have already seen how a parent process can wait for a child to terminate. Processes can also synchronize by sending signals. If you try to read a file descriptor and nothing is available, the read will not return until data is available or an error occurs. Obviously, reading first from one and then from the other will not work---you may block on one file descriptor while there is a data available on the other. unix-rosetta http://bhami.com/unix-rosetta.pdf disk, disklabel, swap, smitty, reboot, fdisk, useradd userdel, sysadm, ufs, kernel, cat, multiuser. smit smitty wsm lsuser mkuser chuser rmuser prtconf lscfg lsattr lsdev bootlist -o -m normal cfgmgr -v /dev/rmt0? lspv -l N/A mkvg mklv /unix /usr/samples/kernel/vmtune (installed with the bos adt.samples fileset) /usr/sbin/no (network-related) bosboot -a /etc/rc* 2: multiuser 6: reboot who -r lsps -a jfs Darwin The Open Source foundation for Mac OS X, descended from NeXTStep Aqua: System Preferences, NetInfo Manager Aqua: System Preferences, Users niutil ioreg -bls nvram (automatic ---autdodiskmounter)? camcontrol atacontrol kldload /dev/rsa0 xf86config disklabel -r c fdisk disklabel -wr sysinstall fdisk sysinstall /kernel /boot/kernel.conf sysctl /etc/sysctl.conf boot0cfg disklabel /etc/rc* /usr/local/etc/rc.d/ -1*: permanently insecure 0: insecure 1: secure 2: highly secure 3: network secure who -r admswap -o list -buv dg_sysreport -p freeswap swapinfo pstat -s systat -swap dg/ux sysctl kern.securelevel ufs HP-UX Hewlett-Packard. chpt2 Elementary Sequence Analysis, Dick Morton, Brian Golding, commands, Unix, subdirectories, request, web browser, shell, listing, common, executing. These notes are in Adobe Acrobat format (they are available upon request in other formats) and they can be obtained from the website http://helix.biology.mcmaster.ca/courses.html. These notes are used in Biology 4K03 (descended from those used for Biology 720; alias 721). You can have a blank space as part of a filename as in "test dat obj" but this becomes quite confusing for some programs (and people) and hence is not a recommended practice. If the argument begins with a '-' it is called a flag and is used to modify the behaviour of the command. Any output from this command will be sent to the screen or a file as appropriate but it cannot accept interactive input in this state. gnubies-11july01 http://www.speakeasy.org/~vagn/gnubies-11july01.pdf unix, vagn, Linux, hex, ascii, decimal/octal/hex, partition, filter, boot sector, unsigned char, character, unix tradition. Vagn Scott vagn@ranok.com This material was presented at the GNUbies meeting in NewYork City on 11 July,2001. S_IFIFO 0010000 fifo symbolic link regular file block device directory character device Some of these files represent data on a disk somewhere, and some represent a stream of bytes to or from a device, or network connection. If the program is built in the style of a filter it will probably be a more useful component than if it is written in some other style. Args may be chars, C -escapes, English names, ^-escapes, ASCII mnemonics, or numerics in decimal/octal/hex. >.?..q.D.U.< Poking around in /usr/doc/lilo we find Manual.txt.gz which tells us Partition tables are stored in partition boot sectors. Normally, only the partition boot sector of the entire disk is used as a boot sector. unix-quickref http://www.bu.edu/cc/handouts/unix-quickref.pdf pine, filename, emacs, command, UNIX, prompt, type C-x, source-file destination-filename, quit, listing, spacebar, online. When viewing a file, press the spacebar to see next screen, or q to quit. If this is your first time using Pine, type n or e (varies by version of Pine) to exit the Welcome to Pine screen. Type i to return to the message index. After answering these questions you may compose your message. To read mail you have saved in your received folder, type l to go to the folder list and select the folder named received. In order to undo any mistakes, type C-x u or C-_ This may be done repeatedly to undo multiple changes. ieee-sp-96-unix sequences, intrusions, traces, anomalies, patterns, detection, database, mismatches, window, immune systems, execution, root. Our experiments show that short sequences of system calls in running processes generate a stable signature for normal behavior. These results are significant because most prior published work on intrusion detection has relied on either a much more complex definition of normal behavior or on prior knowledge about the specific form of intrusions. For a window size of 6, the 112 messages produced a database with 1500 entries, where one entry corresponds to a single pair of system calls with a lookahead value (e.g., read is a legal successor to open at position 1). To determine how the behavior ofsendmail compares with that of other processes, we tested several common processes against the normalsendmail database with 1500 entries. shellscripts script, command, Advanced Unix, echo, Bourne Shell, csh, shell, substitution, execution, characters, prompt, strings. This document explains how to create and execute Bourne shell scripts. You will also learn about shell builtins, input/output redirection, and quoting as well as the difference between interactive and subshell scripting. With no arguments, onintr restores the default action of the shell on interrupts. The counter must be declared in the C shell before the first comparison, which is why the loop was preceded by the declaration (and assignment): set i = 1 The same output could be generated from a foreach loop, with a few important differences to the script. Like the C shell, there are some variables the Bourne shell sets automatically. 117 http://www.pdos.lcs.mit.edu/~rtm/papers/117.pdf packet, host, connection, port, TCP, network, sequence, SYN, TCP/IP, protocol, destination, header. TCP2 supports a number of "ports" on each host running IP, providing reliable and flow controlled "virtual circuits" between these ports; TCP circuits are built on top of the IP datagram service. Each TCP or IP packet consists of a header full of control information followed by data; in the case of TCP the data is supplied by the user, while the data in an IP packet is a TCP packet. The important parts of the TCP header are a source port number, a destination port number, a sequence number, an acknowledgement number, and some flags. 4.2BSD provides a remote execution "server", which listens for TCP connection requests on port 514. tru64UNIXTimes Compaq, customers, Tru64UNIX, market, Itanium processor, support, Tru64 UNIX, Alphasystems, technology, servers, partners, business. IDC reported Tru64 UNIX increased its market share for eight straight quarters, finishing 2000 with an impressive 36 percent growth,making it the second fastestgrowing UNIX in the industry. A:The main goals I have for HPS are to:> Seamlessly transition Compaq Alpha(TM) customers to Itanium solutions as they choose,based on their business needs. Whether you're consolidating servers for cost efficiency or managing workloads to effectively support multiple applications,no other operating system offers more flexibility,security or ease of management than Tru64 UNIX on Compaq AlphaServersystems. Add faster CPU modules to your AlphaServersystems to enhance your current investments,or add new systems to your cluster. cfs http://www.crypto.com/papers/cfs.pdf encryption, protection, CFS, cleartext, decryption, Cryptography, disks, storage, underlying files, interface, measurements, file servers. Users associate a cryptographic key with the directories they wish to protect. Encryption techniques for file system-level encryption aredescribed, and general issues of cryptographic system interfaces to support routine securecomputing arediscussed. To use an encrypted directory,its key must be supplied to CFS with the cattach command. Encrypted files may themselves be expanded to accommodate cipher block boundaries, and therefore can occupy up to one eight byte encryption block of extra storage. On alocal system, both CFS and the user-level system added about one third to total latency.Under NFS, CFS increased latency by roughly a factor of two, while the user encryption tool added only about 13%. asmcodes-1.0.2 instructions, registers, execution, microprocessors, zero, bindsckcode, findsckcode, char, stack, subroutine, assembly codes, Solaris/SPARC. 2001 The Last Stage of Delirium Research Group, Poland c The Last Stage of Delirium Research Group 1996-2001. The authors reserve the right not to be responsible for the topicality, correctness, completeness or quality of the information provided in this document. There are 32 general purpose registers (32 or 64 bits wide depending on a model) and 32 floating point registers (64 bits wide) available on PA-RISC CPU. The proper choice is made by setting the E-bit in a processor status word register (PSW) what is done by the operating system. syscall special instruction is used for calling the operating system services. socketnotes socket, port, communication, struct, descriptor, receiving, datagrams, specifying, int, destination, bind, connection. The facilities for interprocess communication (IPC) originate f rom 4.2 BSD Unix. Sockets are the end points of communication in processes, computers have internet addresses and port numbers. Interprocess communication consists of an exchange of some information by transmitting it in a message between a socket in one process and a socket in another process. The arrangement is asymmetric because one of the sockets will be listening for a request for a connection and the other will be asking for a connection. The process that listens for requests and responds to a connect request is sometimes called a server process - this is shown in Figure 5. Reliable UNIX, memory, MontaVista Software, CPUs, protection, fault, operating system, internet, applications, hardware, Linux, high availability. A number of important technical factors conspire to make UNIX-type systems attractive to today's systems designers (beyond seeking a way around Redmond): reliability and fault-avoidance afforded by UNIX process-based memory protection; a modular, hierarchical application model; open "tinker toy" application building blocks; numerous options for distributed computing and high availability; standard networking built upon Internet Protocol; and broadly ported OS and application code targeting off-the-shelf CPU architectures. The UNIX programming architecture provides formidable protection against such structural bugs by leverage the Memory Management Unit (MMU) available on modern 32-bit and 64-bit CPUs. Whereas many simple programming executives, especially embedded operating systems, bypass the MMU or only enable it as part of cache memory configuration, UNIX embraces the MMU and utilizes it to the fullest to enhance software quality. MontaVista Software, Inc. 1237 East Arques Ave. sasapp http://www.sas.com/partners/directory/hp/sasapp.pdf disk, SAS, server, glance, CPU, memory, configuration, performance baseline, network, environment, utilization, chart. In many SAS application environments, a strategy for measuring and monitoring system performance is key to maintaining Service Level Objectives (SLOs). This paper will discuss various aspects of performance monitoring in a SAS environment, both from a dedicated SAS server perspective as well as multiple applications hosted on a single server. Evaluation of system components such as CPU, memory, disk, and network performance will be discussed individually as well as collectively to develop a complete perspective on both application as well as system level performance. Finally, a case study is reviewed to illustrate how metrics may be used in understanding SAS application performance. Robert F. Sauers and Peter S. Weygant, "HP-UX Tuning and Performance: Concepts, Tools, and Methods", Prentice Hall, July 1999, ISBN 0-13-102716-6.
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