Command more more – Performs view text files. Syntax more [options] file_names Options +N (where N – number) displays the file, starting at the specified line number. +/pattern
Command less less – command displays text files (with the possibility of searching through back). Syntax less [options] file_name Options -? displays a list of commands that can
Command id id – command displays the user ID, group ID and user groups. Syntax id [options] [username] Options -g prints only the group ID. -n displays the
Command head head – command displays the first few lines of a file to standard output. Syntax head [options] file Options -n nline number of displayed rows. Description
Command gzip gzip – command compress one or more files. Syntax gzip [options] files Options -c displays the output file to standard output and keeps the original file.
Command grep grep – command provides search in one or more files, lines that match the regular expression (search patterns). Syntax grep [options] pattern files Options -N (where
Command find find – command displays a list of files that match a given set of criteria. Syntax find [path] [options] Options -depth first processing the current directory,
Command file file – command displays the type of data file based on rules defined in the file /usr/lib/magic (known as the magicfile). Syntax file [options] files Options
Command dos2unix dos2unix command converts a text file format DOS/Mac to UNIX format. Syntax dos2unix [options] [-o file ...] [-n source_file destination_file ...] Options -h displays help about