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?
Add some data here
# 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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