SHA256SUM Commands Cheat Sheet
Here is a cli commands cheat sheet for SHA256SUM command, you can use this as a quick reminder for basic commands with a brief description for each of the commands.
What is SHA256SUM command?
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# To compute hash (checksum) of: sha256sum # To compute hash (checksum) from input text: # Enter text in keyboard and finish by ctrl-D at beginning of line sha256sum Some text ^D echo -n "Hello World" | sha256sum # To verify if a hash (checksum) is correct if a hash-file is provided: # sha256sum will go thru the files listed in . # For each file it will look if it exists. If not, it will print an error. # If it does exist it will compute the checksum and compare it with the hash # provided in the . If they match (good!) it # will print "filename: OK". # If they don't match (warning, you might have been hacked), it will # print "filename: FAILED". sha256sum --check # Same as above (but ignore missing files): # This tells you if your file is an exact copy (OK) or has been # tampered with (FAILED) without bothering you with warnings about # missing files sha256sum --check --ignore-missing
Check out the SHA256SUM command documentation .
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