How to find SHA1 fingerprint in Ubuntu

Open the terminal(Ctrl + Alt + T).

Then type the below command line and press enter.

keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

You will get something like below shown:-

Alias name: androiddebugkey
Creation date: 9 Jan, 2015
Entry type: PrivateKeyEntry
Certificate chain length: 1
Certificate[1]:
Owner: CN=Android Debug, O=Android, C=US
Issuer: CN=Android Debug, O=Android, C=US
Serial number: 8276151
Valid from: Fri Jan 09 18:58:29 IST 2015 until: Sun Jan 01 18:58:29 IST 2045
Certificate fingerprints:
MD5:  99:4C:EB:16:5B:89:20:2F:5A:E2:D2:B1:9E:23:9C:18
SHA1: B1:BB:A7:75:E8:57:BC:8F:21:CC:C7:3C:A8:03:04:94:AE:35:BD:97
SHA256: 75:07:39:83:68:D8:0A:1C:C5:5D:60:4D:DE:1F:29:17:50:3C:58:1E:A5:03:E9:B0:FE:7E:C2:36:B1:59:7D:E3
Signature algorithm name: SHA256withRSA
Version: 3