1. Shell Programming and Scripting

Hi Gurus, In my file I have an amount field from position 74 to 87, which contains values starting with '+' as well as '-'. I want to add all positive values in a varible called "CREDIT" and all negative values in a variable "DEBIT". I know, we can use grep to identify values with positive and... (4 Replies)

2. Shell Programming and Scripting

Hello, For my weather station I have made a little perl script to put the data into cacti. The next problem I have. I can only get positive numbers or negative numbers. What do I do: Though a shell scrip I call the perl script. Shell script: #!/bin/sh cat data.txt | stats.pl Perl... (4 Replies)

3. Shell Programming and Scripting

Hi, I have a file that looks like this: Jake 2 3 4 6 4 3 -2 -1 Jerry 1 2 3 2 1 7 -6 -1 Timmy -1 -4 -5 -8 9 3 1 I want to find the most positive and negative value for each row and also define its position (based on column #) So the output would look... (7 Replies)

4. Shell Programming and Scripting

Let, I have three numbers +00123.25 -00256.54 +00489.23 I need to sum up all those three numbers, after storing them in three variables (say var1, var2, var3). I used both expr and BC, but they didn't work for me. But, I am not able to sum up them, as I don't have any idea how to... (13 Replies)

5. Shell Programming and Scripting

Hi all, I have a file that looks like shown below. I want to find places where the value in column 2 change from negative to positive and vice versa and return the value on column 1 at that point. I wonder if this is possible in shell script or awk .. please help! Here is the original data ... (6 Replies)

6. Shell Programming and Scripting

Hello all, I'm new to the forums and hope to be able to contribute something useful in the future; however I must admit that what has prompted me to join is the fact that currently I need help with something that has me at the end of my tether. I have a PDB (Protein Data Bank) file which I... (13 Replies)

7. Shell Programming and Scripting

Dear All, I have to split a tab delimited file in two files based on the presence of a positive or negative in column number 9 , for example file: A 1 5 erg + 6766 0.9889 0.9817 9.01882 erg inside upstream B 1 8 erg2 + 6766 0.9889 0.9817 -9.22 erg2 inside... (3 Replies)

8. UNIX for Beginners Questions & Answers

Hi ALL, I am having semi column separated file as below. I am having negative values for the records starting with 11095. How can I convert that positive number I tried this below seems not working sed 's/ \(*\)$/ -\1/;t;s/\(.*\)-/\1/ myfile myfile... (6 Replies)

9. UNIX for Beginners Questions & Answers

I have a file that is pipe delimited and in Column F they have number values, both positive and negative. I need to take the one file I am starting with and split it into two separate files based on negative and positive numbers. What is the command to do so? And then I need to also transfer... (4 Replies)