Category: Commands

Command mkdir Creates a directory. Syntax mkdir directory_names Options -m access appoints new directory specified access rights. -p creates parent directories if they do not exist. Description The mkdir command creates the specified directory. …

Command ln Sets hard or symbolic links (aliases) for files and directories. Syntax ln existing_file new_name Options -b backs up files before deleting them. -d creates a hard link to a directory (this can …

Command ls Prints the contents of the directory. Syntax ls Options -a displays all files, including those with names starting with a dot (.). -b displays unprintable characters in file names in octal. …

Command more more – Performs view text files. Syntax more file_names Options +N (where N – number) displays the file, starting at the specified line number. +/pattern begins with a display of two rows …

Command less less – command displays text files (with the possibility of searching through back). Syntax less file_name Options -? displays a list of commands that can use less. -p displays the text of …

Command id id – command displays the user ID, group ID and user groups. Syntax id Options -g prints only the group ID. -n displays the name of the group, rather than group …

Command head head – command displays the first few lines of a file to standard output. Syntax head file Options -n nline number of displayed rows. Description Displays the first line of the file …

Command gzip gzip – command compress one or more files. Syntax gzip files Options -c displays the output file to standard output and keeps the original file. -d decompresses the file (same as gunzip). …

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

Command grep grep – command provides search in one or more files, lines that match the regular expression (search patterns). Syntax grep pattern files Options -N (where N-number) displays the N lines near the …