Search Results

${parameter:offset:length}

That's exactly what I wanted but had no idea where to look.

Thanks for the reply it worked perfectly.

However I don't fully understand it.
If the string is any 2 digits do nothing. That part is ok.
The next part, if the string is a number and any...

I need to write a BASH script that takes a 2 character string and removes the second character if it is not a digit e.g.

If the string is numberical value >9 e.g. string1 = '34' then leave...

Thanks Guru. That works. Just wondering why using the exe that was generated using the C compiler doesn't work (as opposed to using the Unix compiled one).

I want to run a C program from my BASH script. Here's some very basic simplified code of my bash script:


#!/bin/bash

echo "Run C program"
./main.c
echo "Ran C program"


Here's my...

Thanks. That worked a charm :)

How do I remove the G from the 10G i.e. only display the 10?

I want to write a script that extracts a value from a line of text. I know it can be done using awk but I've never used awk before so I don't know how to do it. The text is:

Mem: 100M Active,...

I want to assign different processers to execute each of my files. My system uses FreeBSD. There is a command called taskset which works on Linux but not FreeBSD.

I came across another command...

I'm not sure if this forum covers PERL issues but here I go:

I'm trying to run a PERL script from Notepadd++. I've entered the path of the script from the run command but it is only opening a...

where exactly do i enter this? when i select 'run' in notepad++ i can set the directory but how do i select the file? the login part does not open it.

I'm using Notepad++ to edit my BASH scripts and using CYGWIN to run them from Windows7.

In Notepad++ there is a 'Run' capability. How do I get this to run my scripts directly without having to...

ah i understand now. when i copied the code i had left out the input file.

So is the purpose of the while loop to just keep reading each line within the while loop until something causes it to come out or stop e.g. an exit statement

---------- Post updated at 05:21 PM...

Thanks for replying but I need to understand my code as it is. My code does work (I know because it's used in work) but I don't understand how it works and can't get it to work.

I'm trying to understand the following piece of code using bash:


while read myline; do
.
.
.
done


My initial interpretation was that the user is prompted to enter data which...

vi and vim are causing the same problems.

I'm using notepad++. Thanks

I find though that every time I edit the script I have to run the dos2unix again. Is there any way to permanently keep it converted to Unix format?

Thanks for that. It's working perfectly now :)

Thanks for that. How do I configure it to not write \r?

I'm not sure if this is the right place to post this or should I even be posting this here but here is my problem. I've recently installed Cygwin on my windows laptop so that I can run shell scripts....

Yes it is. I just googled the syntax for the case statement and I can see that the double semicolon is part of it. Thanks

Just wondering what 2 semicolons together after a command means

Thanks again

Thanks Scrutinizer, that worked perfectly. Do you mind explaining how it works please.

I have a text file which is the results of running a tests hundreds of times. For simplicity let's say that each test consists of 5 lines of text numbered 1-5 e.g.

1 aaa aaa aaa

2 bbb bbb bbb...