useful termux built-in commands
Type termux in the console and press tab, a list of commands starts with termux will show up.
Here are some most commonly used commands:
# change apt repository
termux-change-repo
# storage permission
termux-setup-storage
# keep awake
termux-wake-lock
copy file from phone
# storage permission
termux-setup-storage
# restart termux and type
ln -s /sdcard/Download ~/download
# or below on some phone
ln -s /sdcard/Downloads ~/download
crontab
# keep awake
termux-wake-lock
# install crond & start it
apt install cronie
crond
# add a new crontab entry
crontab -e
# type your crontab entry or use https://crontab-generator.org/ to generate one, like
1 * * * * bash ~/download/update_domain.sh > ~/download/update.log
# press ctrl o to save, and quit with ctrl x