Linux/Unix Configuration

Command ln Sets hard or symbolic links (aliases) for files and directories. Syntax ln [options] existing_file new_name Options -b backs up files before deleting them. -d creates a

Command ls Prints the contents of the directory. Syntax ls [options] [directory-names] Options -a displays all files, including those with names starting with a dot (.). -b displays

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 gunzip gunzip – command uncompress zip-files. Syntax gunzip [options] files Options See options for gzip. Description Team gunzip decompresses the compressed files (with extension .gz or .Z).

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,