Read result of sha256sum into a bash variable

2018-06-20 08:13:44

This question already has an answer here:

How to set a variable to the output of a command in Bash? 13 answers

You don't need store it in a variable. You can directly redirect it to the file as well.

sha256sum  debug_2.0.5.hex | awk '{print $1}' > dsl

If you do need to store it in a variable for some other purpose then:

read -r shm_id rest <<<"$(sha256sum  scr)"
echo $shm_id > dsl

shm_id=$(sha256sum  scr | awk '{print $1}')

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