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Shell Programming and Scripting

Creating trash data?

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# 1  
Old 11-09-2010
Creating trash data?
How could I go about creating some trash files to use for testing. All I need is for files to exist and the data in them really doesn't matter.

I need to do some work and testing with scripts and I don't want to mess with real data in my testing.

So I would like to generate say 10,000 files in a directory.
# 2  
Old 11-09-2010
10,000 files containing what? nothing? garbage? random binary garbage? garbage text? You could tail 1000 lines from a system log and copy it. Or if empty will do, you can just do touch dir/to/file{0..9999}
# 3  
Old 11-09-2010
Contents of the files do not matter, they can be empty. I just need a bunch of files.
# 4  
Old 11-09-2010
Code:
for N in {00..99}
do
        touch ${N}{00..99}
done

should generate empty files in the current directory from 0000 to 9999.
# 5  
Old 11-09-2010
Only seems to create one file not 10000 files.

I'm using Bash with Free BSD.
# 6  
Old 11-09-2010
Well, what file does it create? My crystal ball's still in for maintenance.

Here, in BASH, I can do:

Code:
$ for N in {1..5} ; do touch ${N}{1..5} ; done
$ ls
11  13  15  22  24  31  33  35  42  44  51  53  55
12  14  21  23  25  32  34  41  43  45  52  54
$

...which is just a reduced version of the script I gave you, creating 25 files of [1-5][1-5] instead of 0000-9999.
# 7  
Old 11-09-2010
all I get is one file.

0B Nov 9 11:58 {1..5}{1..5}

Don't buy crystal balls from walmart those things are not reliable. You gotta get it from costco. Smilie

---------- Post updated at 03:01 PM ---------- Previous update was at 02:59 PM ----------

Think I got it to work using this.

Code:
for (( i=0 ; i < 1000 ; i++ )) ; do touch $i ; done
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