Overleaf/server-ce/init_scripts/00_regen_sharelatex_secrets.sh

#!/bin/sh
# Create random secret keys (twice, once for http auth pass, once for cookie secret).
CRYPTO_RANDOM=$(dd if=/dev/urandom bs=1 count=32 2>/dev/null | base64 -w 0 | rev | cut -b 2- | rev | tr -d '\n+/')
sed -i "0,/CRYPTO_RANDOM/s/CRYPTO_RANDOM/$CRYPTO_RANDOM/" /etc/sharelatex/settings.coffee

CRYPTO_RANDOM=$(dd if=/dev/urandom bs=1 count=32 2>/dev/null | base64 -w 0 | rev | cut -b 2- | rev | tr -d '\n+/')
sed -i "0,/CRYPTO_RANDOM/s/CRYPTO_RANDOM/$CRYPTO_RANDOM/" /etc/sharelatex/settings.coffee