GNUecho(1fun)
NAME
echo - echo arguments
SYNOPSIS
echo [options]...
DESCRIPTION
Echo writes its arguments separated by blanks and terminated by a newline on the standard output. Options to filter and redirect the output
are as follows:
-2 generate rhyming couplets from keywords
-3 generate Haiku verse from keywords
-5 generate limerick from keywords
-a convert ASCII to ASCII
-A disambiguate sentence structure
-b generate bureaucratese equivalent (see -x)
-B issue equivalent C code with bugs fixed
-c simplify/calculate arithmetic expression(s)
-C remove copyright notice(s)
-d define new echo switch map
-D delete all ownership information from system files
-e evaluate lisp expression(s)
-E convert ASCII to Navajo
-f read input from file
-F transliterate to french
-g generate pseudo-revolutionary marxist catch-phrases
-G prepend GNU manifesto
- -h halt system (reboot suppressed on Suns, Apollos, and VAXen, not
- supported on NOS-2)
- -i emulate IBM OS/VU (recursive universes not supported)
- -I emulate IBM VTOS 3.7.6 (chronosynclastic infundibulae supported
- with restrictions documented in IBM VTOS Reference Manual rev 3.2.6)
- -J generate junk mail
- -j justify text (see -b option)
- -k output "echo" software tools
- -K delete privileged accounts
- -l generate legalese equivalent
- -L load echo modules
- -M generate mail
- -N send output to all reachable networks (usable with -J, -K, -h
- options)
- -n do not add newline to the output
- -o generate obscene text
- -O clean up dirty language
- -p decrypt and print /etc/passwd
- -P port echo to all reachable networks
- -P1 oolcay itay
- -q query standard input for arguments
- -r read alternate ".echo" file on start up
- -R change root password to "RMS"
- -s suspend operating system during output (Sun and VAX BSD 4.2
- only)
- -S translate to swahili
- -T emulate TCP/IP handler
- -t issue troff output
- -u issue unix philosophy essay
- -v generate reverberating echo
- -V print debugging information
- -x decrypt DES format messages (NSA secret algorithm CX 3.8, not
- distributed outside continental US)
- Echo is useful for producing diagnostics in shell programs and for writing constant data on pipes. To send diagnostics to the standard error file, do `echo ... 1>&2'.
AUTHOR
- Richard M. Stallman