CODEWITHSUNDEEP
linuxbashshell
Ramazan Erikli
Ramazan Erikli

Reputation: 167

How can I create a file which containing 10 random numbers in Linux Shell?

I want to create a Linux command which creates a file containing 10 random numbers.

This is a solution to generate 10 random numbers;

RANDOM=$$
for i in `seq 10`
do
echo $RANDOM
done

It is working to generate random numbers but how can I combine this with 'touch' command? Should I create a loop?

Upvotes: 0

Views: 1699

Answers (3)

Basile Starynkevitch
Basile Starynkevitch

Reputation: 1

You could use head(1) and od(1) or GNU gawk with random(4).

For example, perhaps

 head -20c /dev/random | od -s > /tmp/tenrandomnumbers.txt

Upvotes: 0

Antonin GAVREL
Antonin GAVREL

Reputation: 11219

Use >> to write to file, $1 is first argument of your .sh file

FILE=$1
RANDOM=$$
for i in `seq 10`
do
echo $RANDOM >> $FILE
echo "\n" >> $FILE
done

Upvotes: 1

jared_mamrot
jared_mamrot

Reputation: 26484

Using touch? Like this?

touch file.txt && RANDOM=$$
for i in `seq 10`
  do
  echo $RANDOM
done >> file.txt

Not sure why you need touch though, this will also work:

for i in `seq 10`; do echo $RANDOM; done > file.txt

Upvotes: 3

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