Verifying downloaded files using sha256 files

Get ready sha256 Documents and documents to be inspected

[[email protected]]# ll
total 24076
-rw-r--r-- 1 root root 24647024 May 18 01:22 istio-1.13.4-linux-amd64.tar.gz
-rw-r--r-- 1 root root       97 May 18 01:22 istio-1.13.4-linux-amd64.tar.gz.sha256

Use sha256sum Verification file

grammar ：

cat [sha256 file ] | sha256sum --check

Sample execution ：

//  Automatic comparison 
[[email protected]]# cat istio-1.13.4-linux-amd64.tar.gz.sha256 | sha256sum --check
istio-1.13.4-linux-amd64.tar.gz: OK

//  Or compare yourself 
[[email protected] istio]# cat istio-1.13.4-linux-amd64.tar.gz.sha256
a7066afc8ff91266f8903ce6c3c994aafc12da80175c5a3f9f7ab0ed7eaa020f istio-1.13.4-linux-amd64.tar.gz
[[email protected]]# sha256sum istio-1.13.4-linux-amd64.tar.gz
a7066afc8ff91266f8903ce6c3c994aafc12da80175c5a3f9f7ab0ed7eaa020f  istio-1.13.4-linux-amd64.tar.gz