Ubiquiti UniFi Command-Line Interface Reference

Open a tty, prompt for a login name, then invoke /bin/login

getty [OPTIONS] BAUD_RATE TTY [TERMTYPE]

        -h              Enable hardware (RTS/CTS) flow control
        -i              Do not display /etc/issue before running login
        -L              Local line, do not do carrier detect
        -m              Get baud rate from modem's CONNECT status message
        -w              Wait for a CR or LF before sending /etc/issue
        -n              Do not prompt the user for a login name
        -f ISSUE_FILE   Display ISSUE_FILE instead of /etc/issue
        -l LOGIN        Invoke LOGIN instead of /bin/login
        -t SEC          Terminate after SEC if no username is read
        -I INITSTR      Send INITSTR before anything else
        -H HOST         Log HOST into the utmp file as the hostname

Search for PATTERN in each FILE or standard input

grep [-HhrilLnqvsoweFEABCz] PATTERN [FILE]...

        -H      Prefix output lines with filename where match was found
        -h      Suppress the prefixing filename on output
        -r      Recurse
        -i      Ignore case distinctions
        -l      List names of files that match
        -L      List names of files that do not match
        -n      Print line number with output lines
        -q      Quiet. Return 0 if PATTERN is found, 1 otherwise
        -v      Select non-matching lines
        -s      Suppress file open/read error messages
        -c      Only print count of matching lines
        -o      Show only the part of a line that matches PATTERN
        -m MAX  Match up to MAX times per file
        -w      Match whole words only
        -F      PATTERN is a set of newline-separated strings
        -E      PATTERN is an extended regular expression
        -e PTRN Pattern to match
        -f FILE Read pattern from file
        -A      Print NUM lines of trailing context
        -B      Print NUM lines of leading context
        -C      Print NUM lines of output context
        -z      Input is NUL terminated

The following example shows how to search for a pattern from standard input.

# env | grep "bin"
PATH=/usr/bin:/bin:/usr/sbin:/sbin
SHELL=/bin/sh

Uncompress FILEs (or standard input)

gunzip [OPTIONS] [FILE]...

        -c      Write to standard output
        -f      Force
        -t      Test file integrity

Compress FILEs (or standard input)

gzip [OPTIONS] [FILE]...

        -c      Write to standard output
        -d      Decompress
        -f      Force