I have created a text file of exactly 1 MB in size.
demo@mepis1:~$ time dd if=/dev/zero of=1MB.txt bs=1024 count=1024
1024+0 records in
1024+0 records out
1048576 bytes (1.0 MB) copied, 0.00286031 s, 367 MB/s
real 0m0.004s
user 0m0.000s
sys 0m0.003s
demo@mepis1:~$ ls -l 1MB.txt
-rw-r--r-- 1 demo users 1048576 2009-03-26 23:29 1MB.txt
demo@mepis1:~$
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Cancelled this as it was taking way too long to upload.
paul@PAULS-Klikit:~/Documents$ time dd if=/dev/zero of=128KB.txt bs=1024 count=128
128+0 records in
128+0 records out
131072 bytes (131 kB) copied, 0.00802655 seconds, 16.3 MB/s
real 0m0.195s
user 0m0.012s
sys 0m0.008s
paul@PAULS-Klikit:~/Documents$ ls -l 128KB.txt
-rw-r--r-- 1 paul paul 131072 2009-03-27 00:10 128KB.txt
paul@PAULS-Klikit:~/Documents$
128KB.txt
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testing-internet-speeds.txt
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