date -uDisplays the time in GMT(Greenwich Mean Time)/UTC(Coordinated Universal Time )time zone.
date +% <format-options>:
ln -s /usr/share/zoneinfo/Asia/Tehran /etc/localtime
cp /usr/share/zoneinfo/Asia/Tehran /etc/localtime
sudo unlink /etc/localtimeor
sudo rm -rf /etc/localtime
/etc/sysconfig/clockis holding timezone name on RHEL based systems.
filecommand to see character encoding of a file.
iconvprogram to convert between character encodings. Obviously, if you go from a large character set to a smaller one, the conversion does not happen properly.
iconv -llist all known character set encodings..