Reading line by line from file. Post: 6169

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1. Shell Programming and Scripting

Reading a file line by line and processing for each line

Hi, I am a beginner in shell scripting. I have written the following script, which is supposed to process the while loop for each line in the sid_home.txt file. But I'm getting the 'end of file' unexpected for the last line. The file sid_home.txt gets generated as expected, but the script...

2. Shell Programming and Scripting

reading a file inside awk and processing line by line

Hi Sorry to multipost. I am opening the new thread because the earlier threads head was misleading to my current doubt. and i am stuck. list=`cat /u/Test/programs`; psg "ServTest" | awk -v listawk=$list '{ cmd_name=($5 ~ /^/)? $9:$8 for(pgmname in listawk) ...

3. Shell Programming and Scripting

[Solved] Problem in reading a file line by line till it reaches a white line

So, I want to read line-by-line a text file with unknown number of files.... So: a=1 b=1 while ; do b=`sed -n '$ap' test` a=`expr $a + 1` $here do something with b etc done the problem is that sed does not seem to recognise the $a, even when trying sed -n ' $a p' So, I cannot read...

4. UNIX for Dummies Questions & Answers

Parsing file, reading each line to variable, evaluating date/time stamp of each line

So, the beginning of my script will cat & grep a file with the output directed to a new file. The data I have in this file needs to be parsed, read and evaluated. Basically, I need to identify the latest date/time stamp and then calculate whether or not it is within 15 minutes of the current...

5. Shell Programming and Scripting

How to start reading from the nth line till the last line of a file.

Hi, For my reuirement, I have to read a file from the 2nd line till the last line<EOF>. Say, I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines. for i in `cat test.txt` { echo $i } While doing the above loop, I have read...

6. Shell Programming and Scripting

Reading text file, comparing a value in a line, and placing only part of the line in a variable?

I need some help. I would like to read in a text file. Take a variable such as ROW-D-01, compare it to what's in one line in the text file such as PROD/VM/ROW-D-01 and only input PROD/VM into a variable without the /ROW-D-01. Is this possible? any help is appreciated.

7. Shell Programming and Scripting

Comparison of fields then increment a counter reading line by line in a file

Hi, i have a scenario were i should compare a few fields from each line then increment a variable based on that. Example file 989878|8999|Y|0|Y|N|V 989878|8999|Y|0|N|N|V 989878|8999|Y|2344|Y|N|V i have 3 conditions to check and increment a variable on every line condition 1 if ( $3...

8. Shell Programming and Scripting

Reading line by line from live log file using while loop and considering only those lines start from

Hi, I want to read a live log file line by line and considering those line which start from time stamp; Below code I am using, which read line but throws an exception when comparing line that does not contain error code tail -F /logs/COMMON-ERROR.log | while read myline; do...

9. UNIX for Beginners Questions & Answers

Reading a file line by line and print required lines based on pattern

Hi All, i want to write a shell script read below file line by line and want to exclude the lines which contains empty value for MOUNTPOINT field. i am using centos 7 Operating system. want to read below file. # cat /tmp/d5 NAME="/dev/sda" TYPE="disk" SIZE="60G" OWNER="root"...

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       books - Books Related to Open Inventor / Coin Here is a list of some of the better books for people that invested in software development
       with Open Inventor. If you have suggestions for additional books that ought to go on this list, please feel free to tell us about it.

The Inventor Mentor
       (subtitle 'Programming Object-Oriented 3D Graphics with Open Inventor')

       This is an excellently written, detailed, tutorial-style introductory book for Open Inventor that takes you through all the fundamental
       design principles applied in the Open Inventor API, richly illustrated and with numerous, well documented code examples.

       The Inventor Mentor is getting a bit old, but do not let that put you off. It is as valid today as it was the day it was written, and we
       heartily recommend this book for anyone learning to use Open Inventor.

       ISBN 0-201-62495-8. You might also be able to find this book as a pdf file online, but we recommend having it in print.

The Inventor Toolmaker
       This book explains how Open Inventor was designed for being extended by the users, and walks you through how to develop your own components
       that work with all aspects of Coin.

       ISBN 0-201-62493-1. You might also be able to find this book as a pdf file online, but we recommend having it in print.

The Annotated VRML2.0 Reference Manual
       This book covers the VRML97 (aka VRML 2.0) standard, which Coin has implemented with its Inventor/VRMLnodes/* classes, which is an
       extension made beyond the Open Inventor V2.1 API.

       The VRML97 format has some significant differences from the Inventor and VRML1 formats, so it is a useful book if you want to use that part
       of Coin.

       ISBN 0-201-41974-2. You will find the specification documents for VRML97 online at http://www.web3d.org/.

The Open GL Programming Manual
       This is the bible when it comes to OpenGL programming and is relevant for Open Inventor extenders that develop new nodes that implement or
       affect Open Inventor OpenGL rendering. There are many editions of this book since it is updated whenever new versions of OpenGL are
       standardized and comes out, so check that you have identified the latest edition if you order one.

The Open Inventor C++ Reference Manual
       Although this book is directly relevant for Open Inventor, it does only cover the Open Inventor 2.1 API. This information is more or less
       also covered in the online doxygen doc for Coin, where you have it hyperlinked, and can also be generated offline from the Coin sources to
       have locally, so we do not think this book is very useful to have in print. We mention it anyway since it is an official documentation book
       for Open Inventor.

       ISBN 0-201-62491-5.

Version 3.1.3							  Wed May 23 2012							  books(3)