During meteor.js installation

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curl https://install.meteor.com/ | sh

you can find some certificate issues. Installation is provided by https and bad configuration of it won’t let you install meteor.js.

curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: http://curl.haxx.se/docs/sslcerts.html
 
curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.

You can always try to use

--insecure

but it didn’t help. We’ve figured out that there’s problem with 'sh’. You can install meteor.js using direct path to 'sh’:

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curl https://install.meteor.com/ | /bin/sh

or add path to environment variables just before installation:

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export PATH=/usr/bin:$PATH