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“Linux at the Command Line” Don Johnson of BU IS&T We’Ll Start with a Sign in Sheet
“Linux at the Command Line” Don Johnson of BU IS&T We’ll start with a sign in sheet. We’ll end with a class evaluation. We’ll cover as much as we can in the time allowed; if we don’t cover everything, you’ll pick it up as you continue working with Linux. This is a hands-on, lab class; ask questions at any time. Commands for you to type are in BOLD The Most Common O/S Used By BU Researchers When Working on a Server or Computer Cluster Linux is a Unix clone begun in 1991 and written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. 64% of the world’s servers run some variant of Unix or Linux. The Android phone and the Kindle run Linux. a set of small Linux is an O/S core programs written by written by Linus Richard Stallman and Torvalds and others others. They are the AND GNU utilities. http://www.gnu.org/ Network: ssh, scp Shells: BASH, TCSH, clear, history, chsh, echo, set, setenv, xargs System Information: w, whoami, man, info, which, free, echo, date, cal, df, free Command Information: man, info Symbols: |, >, >>, <, ;, ~, ., .. Filters: grep, egrep, more, less, head, tail Hotkeys: <ctrl><c>, <ctrl><d> File System: ls, mkdir, cd, pwd, mv, touch, file, find, diff, cmp, du, chmod, find File Editors: gedit, nedit You need a “xterm” emulation – software that emulates an “X” terminal and that connects using the “SSH” Secure Shell protocol. ◦ Windows Use StarNet “X-Win32:” http://www.bu.edu/tech/support/desktop/ distribution/xwindows/xwin32/ ◦ Mac OS X “Terminal” is already installed Why? Darwin, the system on which Apple's Mac OS X is built, is a derivative of 4.4BSD-Lite2 and FreeBSD. -
Your Performance Task Summary Explanation
Lab Report: 11.2.5 Manage Files Your Performance Your Score: 0 of 3 (0%) Pass Status: Not Passed Elapsed Time: 6 seconds Required Score: 100% Task Summary Actions you were required to perform: In Compress the D:\Graphics folderHide Details Set the Compressed attribute Apply the changes to all folders and files In Hide the D:\Finances folder In Set Read-only on filesHide Details Set read-only on 2017report.xlsx Set read-only on 2018report.xlsx Do not set read-only for the 2019report.xlsx file Explanation In this lab, your task is to complete the following: Compress the D:\Graphics folder and all of its contents. Hide the D:\Finances folder. Make the following files Read-only: D:\Finances\2017report.xlsx D:\Finances\2018report.xlsx Complete this lab as follows: 1. Compress a folder as follows: a. From the taskbar, open File Explorer. b. Maximize the window for easier viewing. c. In the left pane, expand This PC. d. Select Data (D:). e. Right-click Graphics and select Properties. f. On the General tab, select Advanced. g. Select Compress contents to save disk space. h. Click OK. i. Click OK. j. Make sure Apply changes to this folder, subfolders and files is selected. k. Click OK. 2. Hide a folder as follows: a. Right-click Finances and select Properties. b. Select Hidden. c. Click OK. 3. Set files to Read-only as follows: a. Double-click Finances to view its contents. b. Right-click 2017report.xlsx and select Properties. c. Select Read-only. d. Click OK. e. -
Powerview Command Reference
PowerView Command Reference TRACE32 Online Help TRACE32 Directory TRACE32 Index TRACE32 Documents ...................................................................................................................... PowerView User Interface ............................................................................................................ PowerView Command Reference .............................................................................................1 History ...................................................................................................................................... 12 ABORT ...................................................................................................................................... 13 ABORT Abort driver program 13 AREA ........................................................................................................................................ 14 AREA Message windows 14 AREA.CLEAR Clear area 15 AREA.CLOSE Close output file 15 AREA.Create Create or modify message area 16 AREA.Delete Delete message area 17 AREA.List Display a detailed list off all message areas 18 AREA.OPEN Open output file 20 AREA.PIPE Redirect area to stdout 21 AREA.RESet Reset areas 21 AREA.SAVE Save AREA window contents to file 21 AREA.Select Select area 22 AREA.STDERR Redirect area to stderr 23 AREA.STDOUT Redirect area to stdout 23 AREA.view Display message area in AREA window 24 AutoSTOre .............................................................................................................................. -
Doing More in UNIX HORT 59000 Lab 3 Instructor: Kranthi Varala Today’S Pairs
Doing more in UNIX HORT 59000 Lab 3 Instructor: Kranthi Varala Today’s pairs Pair #1 Pair #2 Pair #3 Pair #4 Pair #5 Pair #6 Pair #7 Pair #8 Aishwarya, Habte, Chancellor, Rachel F., Rachel H., Michelle, Raquel, Katherine, Shawna Xiaojin Thiti Sara AuditorX Jay Courtney Hannah If your partner is missing, let me know and we’ll adjust the pairs based on availability. Quiz 2 • Open-book policy: You are free to look at all the slides from previous Lectures and labs. • No internet searches for answers. • No talking to others. • You have 20 minutes to complete the quiz. Creating pipelines from commands • The STDIN and STDOUT of each command can be redirected to combine programs together. • For example, the STDOUT of one program can be sent to the STDIN of another program. • STDIN and STDOUT streams can be redirected using the following symbols: 1. > 2. < 3. | Writing vs. Appending to a file $ cat Pasture.txt > Poems.txt Send the contents of Pasture.txt to a new file called Poems.txt. If Poems.txt exists, its contents are over- written. $ cat WoodPile.txt >> Poems.txt Add the contents of WoodPile.txt to the end of the existing file Poems.txt. If Poems.txt does not exist, it will be created. Exercises UNIX commands wget and nano • Search NCBI’s GEO website for the experiment GSE49418. • Find the FTP link for the series matrix file. • Copy the link to the GSE49418_series_matrix.txt.gz file. • Use wget to download the matrix file to a new directory in your scratch folder. -
Operating System User's Mannal ~Zilog 03-0072-01 Revision a September 1978
t_ .' Operating System User's Mannal ~Zilog 03-0072-01 Revision A September 1978 Copyright © 1978 by Zilog, Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Zilog. Zilog assumes no responsibility for the use of any circuitry other than circuitry embodied in a Zilog product. No other circuit patent licenses are implied. zaO-RIO Operating System User's Manual September 1978 TABLE OF CONTENTS CHAPTER 1 - INTRODUCTION AND OVERVIEW • 1 1.1 INTRODUCTION •• 1 1.2 SYSTEM OVERVIEW 3 1.2.1 Hardware Configuration • • • • • • 3 1.2.2 File Systems • • • • • • • . • • 3 1.2.3 System Initialization •••.••• 6 1.2.4 Commands • • .• .•..••• 7 1.2.5 I/O • • • . • • • • • . • • • • • . 7 CHAPTER 2 - RIO EXECUTIVE 9 2.1 SYSTEM INITIALIZATION 9 2.2 FILE NAME CONVENTIONS · 10 2.3 MEMORY MANAGEMENT . • • . 12 2.3.1 MEMMGR • . 13 2.4 COMMAND STRING INTERPRETATION · 13 2.5 ERROR HANDLING • • . 15 2.6 PROGRAM EXECUTION OF COMMANDS · 15 CHAPTER 3 - 1/0 STRUCTURE • · 16 3.1 OVERVIEW . • · 16 3.2 I/O REQUESTS - SYSTEM CALLS · 17 3.3 THE 'ASSIGN' I/O REQUEST ••• • 19 - i - 3.4 STANDARD RIO I/O DEVICES • • • 21 3.4.1 ZDOS . • • • . 21 3.4.2 DFS . 21 3.4.3 NULL . • • • . 21 3.4.4 CON . • • • . • • • • • 22 3.4.5 PCON • 27 3.4.6 FLOPPY • • • • • • • • • • 27 3.4.7 DISK • • • • • • 27 CHAPTER 4 - PROGRAM INTERFACE • • 28 4.1 PROGRAM LOCATION • • • • • 28 4.2 PARAMETER STRING ADDRESS · 29 4.3 PROGRAM STACK SPACE • • • 29 4.4 PROGRAM TERMINATION - ERROR HANDLING ••. -
LINUX INTERNALS LABORATORY III. Understand Process
LINUX INTERNALS LABORATORY VI Semester: IT Course Code Category Hours / Week Credits Maximum Marks L T P C CIA SEE Total AIT105 Core - - 3 2 30 70 100 Contact Classes: Nil Tutorial Classes: Nil Practical Classes: 36 Total Classes: 36 OBJECTIVES: The course should enable the students to: I. Familiar with the Linux command-line environment. II. Understand system administration processes by providing a hands-on experience. III. Understand Process management and inter-process communications techniques. LIST OF EXPERIMENTS Week-1 BASIC COMMANDS I Study and Practice on various commands like man, passwd, tty, script, clear, date, cal, cp, mv, ln, rm, unlink, mkdir, rmdir, du, df, mount, umount, find, unmask, ulimit, ps, who, w. Week-2 BASIC COMMANDS II Study and Practice on various commands like cat, tail, head , sort, nl, uniq, grep, egrep,fgrep, cut, paste, join, tee, pg, comm, cmp, diff, tr, awk, tar, cpio. Week-3 SHELL PROGRAMMING I a) Write a Shell Program to print all .txt files and .c files. b) Write a Shell program to move a set of files to a specified directory. c) Write a Shell program to display all the users who are currently logged in after a specified time. d) Write a Shell Program to wish the user based on the login time. Week-4 SHELL PROGRAMMING II a) Write a Shell program to pass a message to a group of members, individual member and all. b) Write a Shell program to count the number of words in a file. c) Write a Shell program to calculate the factorial of a given number. -
UNIX X Command Tips and Tricks David B
SESUG Paper 122-2019 UNIX X Command Tips and Tricks David B. Horvath, MS, CCP ABSTRACT SAS® provides the ability to execute operating system level commands from within your SAS code – generically known as the “X Command”. This session explores the various commands, the advantages and disadvantages of each, and their alternatives. The focus is on UNIX/Linux but much of the same applies to Windows as well. Under SAS EG, any issued commands execute on the SAS engine, not necessarily on the PC. X %sysexec Call system Systask command Filename pipe &SYSRC Waitfor Alternatives will also be addressed – how to handle when NOXCMD is the default for your installation, saving results, and error checking. INTRODUCTION In this paper I will be covering some of the basics of the functionality within SAS that allows you to execute operating system commands from within your program. There are multiple ways you can do so – external to data steps, within data steps, and within macros. All of these, along with error checking, will be covered. RELEVANT OPTIONS Execution of any of the SAS System command execution commands depends on one option's setting: XCMD Enables the X command in SAS. Which can only be set at startup: options xcmd; ____ 30 WARNING 30-12: SAS option XCMD is valid only at startup of the SAS System. The SAS option is ignored. Unfortunately, ff NOXCMD is set at startup time, you're out of luck. Sorry! You might want to have a conversation with your system administrators to determine why and if you can get it changed. -
IODF Explorer
The Input/Output Definition File (IODF) is a critical Control Point in the management of the IBM z/Series Platform. IODF Explorer Release 4.0 USER GUIDE Contact us for additional information: NewEra Software Technical Support 800-421-5035 [email protected] www.newera.com Rev: 2009-04-24 IODF Explorer 4.0 ¾ Copyright, Trademark and Legal Notices Copyrights This Getting Started Guide and the related Software Product(s) are protected under a Copyright dated 2009 by NewEra Software, Inc. All rights are reserved. License Agreement This Getting Started Guide describes the installation and operation of Image FOCUS, its environment and applications. It is made available only under the terms of a license agreement between the licensee and NewEra Software Inc. No part of this Guide or the related Software Product(s) may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of NewEra Software, Inc. Trademarks and Copyrights of Others The following products and/or registered trademarks of International Business Machines Corporation are referenced in this document: MVS, VM, RACF, z/OS, SYSPLEX, JES, VTAM, TSO, ISPF, ICKDSF, DFSMSdss, DF/DSS, and others. 2 NewEra Software, Inc. ‐ Image Control Environment (ICE) Applications IODF Explorer 4.0 ¾ Technical Support Information NewEra Software is dedicated to providing the highest level of technical Around-the-clock- support support to meet our customers’ growing needs. In order to meet these needs, NewEra provides around‐the‐clock technical support, 7 days a week, 24 hours a day. -
Unix Programming
P.G DEPARTMENT OF COMPUTER APPLICATIONS 18PMC532 UNIX PROGRAMMING K1 QUESTIONS WITH ANSWERS UNIT- 1 1) Define unix. Unix was originally written in assembler, but it was rewritten in 1973 in c, which was principally authored by Dennis Ritchie ( c is based on the b language developed by kenThompson. 2) Discuss the Communication. Excellent communication with users, network User can easily exchange mail,dta,pgms in the network 3) Discuss Security Login Names Passwords Access Rights File Level (R W X) File Encryption 4) Define PORTABILITY UNIX run on any type of Hardware and configuration Flexibility credits goes to Dennis Ritchie( c pgms) Ported with IBM PC to GRAY 2 5) Define OPEN SYSTEM Everything in unix is treated as file(source pgm, Floppy disk,printer, terminal etc., Modification of the system is easy because the Source code is always available 6) The file system breaks the disk in to four segements The boot block The super block The Inode table Data block 7) Command used to find out the block size on your file $cmchk BSIZE=1024 8) Define Boot Block Generally the first block number 0 is called the BOOT BLOCK. It consists of Hardware specific boot program that loads the file known as kernal of the system. 9) Define super block It describes the state of the file system ie how large it is and how many maximum Files can it accommodate This is the 2nd block and is number 1 used to control the allocation of disk blocks 10) Define inode table The third segment includes block number 2 to n of the file system is called Inode Table. -
Unix (And Linux)
AWK....................................................................................................................................4 BC .....................................................................................................................................11 CHGRP .............................................................................................................................16 CHMOD.............................................................................................................................19 CHOWN ............................................................................................................................26 CP .....................................................................................................................................29 CRON................................................................................................................................34 CSH...................................................................................................................................36 CUT...................................................................................................................................71 DATE ................................................................................................................................75 DF .....................................................................................................................................79 DIFF ..................................................................................................................................84 -
Useful Commands in Linux and Other Tools for Quality Control
Useful commands in Linux and other tools for quality control Ignacio Aguilar INIA Uruguay 05-2018 Unix Basic Commands pwd show working directory ls list files in working directory ll as before but with more information mkdir d make a directory d cd d change to directory d Copy and moving commands To copy file cp /home/user/is . To copy file directory cp –r /home/folder . to move file aa into bb in folder test mv aa ./test/bb To delete rm yy delete the file yy rm –r xx delete the folder xx Redirections & pipe Redirection useful to read/write from file !! aa < bb program aa reads from file bb blupf90 < in aa > bb program aa write in file bb blupf90 < in > log Redirections & pipe “|” similar to redirection but instead to write to a file, passes content as input to other command tee copy standard input to standard output and save in a file echo copy stream to standard output Example: program blupf90 reads name of parameter file and writes output in terminal and in file log echo par.b90 | blupf90 | tee blup.log Other popular commands head file print first 10 lines list file page-by-page tail file print last 10 lines less file list file line-by-line or page-by-page wc –l file count lines grep text file find lines that contains text cat file1 fiel2 concatenate files sort sort file cut cuts specific columns join join lines of two files on specific columns paste paste lines of two file expand replace TAB with spaces uniq retain unique lines on a sorted file head / tail $ head pedigree.txt 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 10 -
Hardware Configuration Definition User's Guide
z/OS Version 2 Release 3 Hardware Configuration Definition User's Guide IBM SC34-2669-30 Note Before using this information and the product it supports, read the information in “Notices” on page 443. This edition applies to Version 2 Release 3 of z/OS (5650-ZOS) and to all subsequent releases and modifications until otherwise indicated in new editions. Last updated: 2019-02-16 © Copyright International Business Machines Corporation 1994, 2018. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents List of Figures..................................................................................................... xiii List of Tables.....................................................................................................xxiii About this document.......................................................................................... xxv Who this document is for..........................................................................................................................xxv Related information.................................................................................................................................. xxv How to use this document.......................................................................................................................xxvi How this document is organized............................................................................................................. xxvi How to read syntax diagrams................................................................................................................