Sed Example Changing Oracle Labs Password

All the oracle labs' passwords are wrong for my environment.
We want to change from oracle_4U to oracle in order to getting them working properly.

 for i in $(grep -il oracle_4U *.sh) ; do sed 's/oracle_4U/oracle/g' $i > $i.OK.sh ; done

Done and working!!!!

read file

Pattern sunbstitution pointing to a character cleaning, at file names:

we want to execute this command in order to rename many files with ":" at its filenames:

cp les000a106297.es.acme.net_2019-11-29-00:00:01.tar les000a106297.es.acme.net_2019-11-29-000001.tar
for i in *:*tar ; do mv $i $(echo $i |sed 's/://g') ; done