bash confirm dynamic values

Question

I have a bash script say test.sh and while executing manually say sh test.sh. First it will ask y/n,then if I give yes,again it will ask y/n and on the second yes, it will ask me to give a server host-name and once I give the host-name again it asks for a series of y/n and finally it will be successfully completed. I am curious to know how to automate like a silent installation.

I tried echo y | sh test.sh... But the issue with this is that for the server host-name also it is giving y

its not a duplicate.. here the values are dynamic.. please read the qn properly before commenting something — gosatriani, Feb 22 '18 at 11:59
@PesaThe I reopened the question, feel free to add the snippet as an answer. gosatrini: I missed the part where you have to give a server name as input — fedorqui, Feb 22 '18 at 12:42

PesaThe · Accepted Answer · 2018-02-22T12:50:10.113

0

You can use something like this:

{ cat <<'EOF'
y
y
Some hostname
EOF
yes; } | ./test.sh

Or use yes / echo instead of the here-document:

{ yes | head -n 2; echo "Some hostname"; yes; } | ./test.sh

edited Feb 22 '18 at 12:50

answered Feb 22 '18 at 12:44

PesaThe

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hi pesa is it possible to do like this { a = server1 cat <<'EOF' y y $a EOF yes; } | ./test.sh i need the value of a to come there.. – gosatriani Feb 22 '18 at 13:29
@gosatriani Yes, all you need to do is to remove the quotes around `EOF` and then variables will be expanded or use the second code :) – PesaThe Feb 22 '18 at 13:33
@gosatriani make sure there are no spaces around `=`: `a=server1`. – PesaThe Feb 22 '18 at 13:40
@gosatriani Why use a variable at all here? – chepner Feb 22 '18 at 15:25

bash confirm dynamic values

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