редактор потока (stream editor)
Имя (Name)
sed — stream editor
Синопсис (Synopsis)
sed [-n] script [file...]
sed [-n] -e script [-e script]... [-f script_file]... [file...]
sed [-n] [-e script]... -f script_file [-f script_file]... [file...]
Описание (Description)
The sed utility is a stream editor that shall read one or more
text files, make editing changes according to a script of editing
commands, and write the results to standard output. The script
shall be obtained from either the script operand string or a
combination of the option-arguments from the -e script and -f
script_file options.