1. Programming

Hi I'm learning how to add in programm another option by command line. For example in the "my_prog" i want to add a " -k " option and then write a number. I mean: my_prog -k 50 and the i should use the number 50. I'm reading about getopt_long and optarg, and what i have done in the code... (0 Replies)

2. UNIX for Dummies Questions & Answers

i'm confused what this means. i was asked to design a menu or command line option driven script that reads out of a DB and displays info such as read_data.pl -u <user> -e <event> which would print commands run by <user>with the <event> in the db. any suggestions? i've been using... (2 Replies)

3. Shell Programming and Scripting

Hi Folks, I am new to ksh, i have informatica parameter file that i need to update everyday with shell script. i need your help updating this file with new parameters. sample data $$TABLE1_DATE=04-27-2011 $$TABLE2_DATE=04-23-2011 $$TABLE3_DATE=03-19-2011 .......Highligned... (4 Replies)

4. Homework & Coursework Questions

Hi, I am creating a program with the C language that simulates the WC command in Unix. My program needs to count lines, bytes and words. I have not added the code to count bytes and words yet. I am having trouble understanding what the file option/flag '-' does. I can not visualize how it moves... (1 Reply)

5. Shell Programming and Scripting

I am trying to write a script that will allow me to recursively look at my directories, and output all filenames to a txt document. I am almost finished, however I am hitting one last snag. Here is my script so far: find . | grep .jpg | awk -F"/" '{print $NF}' > output.txtThis will give me an... (7 Replies)

6. Shell Programming and Scripting

Hi, I have a file like : I want to remove last string in last line (here total string is "05550"~). And last line end with ~ character. Output should be : Please help me Thanks in advance (3 Replies)

7. Programming

I have a C++ program. I read command line arguments, but if the value is not supplied, I default or make a calculation. Let's say I set it to a default value. I can code this in several ways. Here I show three ways. What would be the best way for maintaining this code? The program will get very... (2 Replies)

8. UNIX for Dummies Questions & Answers

Hi all! I have a data set in this tab separated format : Label, Value1, Value2 An instance is "data.txt" : 0 1 1 -1 2 3 0 2 2 I would like to parse this data set and generate two files, one that has only data with the label 0 and the other with label -1, so my outputs should be, for... (1 Reply)

9. Shell Programming and Scripting

I am looking for help in processing of those options: '-n' or '-p' I understand what they do and how to use them. But, I would like to use them with more than one file (and without any shell-loop; loading the 'perl' once.) I did try it and -n works on 2 files. Question is: - is it possible to... (6 Replies)