Using bash variable in perl parameter

Question

Ubuntu, terminal window, bash shell:

alex@d120432:~$ echo $0
bash
alex@d120432:~$ echo $(perl -e 'print "a"x2')
aa
alex@d120432:~$ i=2
echo $i
2
alex@d120432:~$ echo $(perl -e 'print "a"x$i')

alex@d120432:~$

Is there syntax which allows to substitute $i with 2, so that the second echo command prints xx like the first one?

anubhava · Accepted Answer · 2020-02-05 10:59:48Z

1

You need to get quoting right:

i=2
perl -le "print 'a' x $i"

aa

answered Feb 5, 2020 at 10:59

anubhava

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1 Comment

Alex F Over a year ago

Thank you. I found that my case is more complicated, can you see this question? stackoverflow.com/questions/60074869/…

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