1. Programming

I have a requirement to close all the file descriptors from 3 to 1024 for a particular application. Right now, this is how I do it .. for ( int i = 3 ; i <= 1024; ++i ) close(i); The change I am looking at is, I want to do away with the number 1024 and replace it with a constant which... (4 Replies)

2. Shell Programming and Scripting

Hello, I read and search through this wonderful forum and tried different approaches but it seems I lack some knowledge and neurones ^^ Here is what I'm trying to achieve : file1: test filea 3495; test fileb 4578; test filec 7689; test filey 9978; test filez 12300; file2: test filea... (11 Replies)

3. UNIX for Dummies Questions & Answers

Hi Experts, I have a requirement where i need to update the below items in file, 1. END TIME 2. PREV_STATUS For the first time the PREV_status and end time of all job the job will be sysdate & NULL reply as below, Session_name,Load Type,Frequency,Seesion End time,Prev_Status... (2 Replies)

4. Shell Programming and Scripting

Hi, I need to edit a file Protein Data Bank (pdb) and then open that file with the program VMD but when I edit the file with awk, it changes pdb format and the VMD program can not read it. I need to subtract 34 to field 6 ($ 6). this is a pdb file : ATOM 918 N GLY B 103 -11.855 8.675... (8 Replies)

5. Shell Programming and Scripting

Hi I need some help with a task, i am an absolute newbie to any form of shell scripting and request guidance. Task: 1. Read a config file in form of name value pair ex host=www.test.com port=8080 binding="dynamic" or "other" or "something else" key1=value1 key2=value2 key3=value4... (4 Replies)

6. Shell Programming and Scripting

I have to do a read operation for a field in property file, which looks like follows: 123|xyz|datetime|count '|' is delimiter. Finally I managed to read the contents of property file using statement like cut -d"|" -f1 $PROPERTIES_FILE | tr '\n' ' ' <-- Reading first column But now I... (2 Replies)

7. Programming

Hi guys, I am writing a Makefile with some strange features. What I have is: list of files *.efi list of guids (guid is just a number) one *.efi file is supposed to be used with one guid, so efi file and guid is a pair. What I need is: list of files *.fv How to make *.fv file... (1 Reply)

8. Shell Programming and Scripting

Hi gurus, I wanted to split main file in 20 files with 2500 lines in each file. My main file conatins total 2500*20 lines. Following awk I made, but it is breaking with error. awk '{ for (i = 1; i <= 20; i++) { starts=2500*$i-1; ends=2500*$i; NR>=starts && NR<=ends {f=My$i".txt"; print >> f;... (10 Replies)

9. Shell Programming and Scripting

I am very new to scripting and I know this request is simple but I am having no luck with it. I have a file a.dat with the following data in it. aa bb cc dd I need to run a script that will take each line of a.dat and put dsjc/ubin/ in front of each record, so the output looks like ... (2 Replies)

10. Shell Programming and Scripting

Hi, I am converting a .DBF file to pipe delimited file my requirement is like lets say my .DBF is residing in path /a/b/c/d/f/abc.DBF I need my .txt file as having a column with source _cd =f sample data in .DBF in folder "f" c1 c2 c3 1 2 3 in txt file it should be... (4 Replies)