I am writing a simple script to check if the certificate for a website is valid. However, when I attempt to run the code in terminal, I receive an error message stating that the command openssl cannot be found. Here is the code:
if true | openssl s_client -connect www.google.com:443 2>/dev/null | \
openssl x509 -noout -checkend 0; then
echo "Certificate is not expired"
else
echo "Certificate is expired"
fi
When I attempt to run this code, I receive this output:
./check-certificates.sh: line 6: openssl: command not found
Certificate is expired
The code runs, but it does not recognise openssl as a valid command, so it skips over the line of code where this is mentioned, and defaults to outputting "Certificate is expired".
When using sudo apt-get install openssl I receive this message:
...
openssl is already the newest version (1.0.2g-1ubuntu4.15).
...
So it looks like openssl has been successfully installed. I'm at a loss on how to fix this - does anybody have any ideas?
As requested, here is the output of apropos openssl | grep "OpenSSL command line tool":
openssl (1ssl) - OpenSSL command line tool
And locate openssl | grep /usr/bin:
usr/bin/openssl
apropos openssl | grep "OpenSSL command line tool"andlocate openssl | grep /usr/binto your question.opensslbinary or add it to youPATHvariable. You can find out where it is located by runningwhereis openssldpkg --listfiles openssl | moreto see where it's dropped the openssl executable. It clearly isn't in your$PATH.