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m4 - Online in the Cloud

Run m4 in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command m4 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


m4 - macro processor

SYNOPSIS


m4 [OPTION]... [FILE]...

DESCRIPTION


Process macros in FILEs. If no FILE or if FILE is `-', standard input is read.

Mandatory or optional arguments to long options are mandatory or optional for short
options too.

Operation modes:
--help display this help and exit

--version
output version information and exit

-E, --fatal-warnings
once: warnings become errors, twice: stop execution at first error

-i, --interactive
unbuffer output, ignore interrupts

-P, --prefix-builtins
force a `m4_' prefix to all builtins

-Q, --quiet, --silent
suppress some warnings for builtins

--warn-macro-sequence[=REGEXP]
warn if macro definition matches REGEXP,

default \$\({[^}]*}\|[0-9][0-9]+\)

Preprocessor features:
-D, --define=NAME[=VALUE]
define NAME as having VALUE, or empty

-I, --include=DIRECTORY
append DIRECTORY to include path

-s, --synclines
generate `#line NUM "FILE"' lines

-U, --undefine=NAME
undefine NAME

Limits control:
-g, --gnu
override -G to re-enable GNU extensions

-G, --traditional
suppress all GNU extensions

-H, --hashsize=PRIME
set symbol lookup hash table size [509]

-L, --nesting-limit=NUMBER
change nesting limit, 0 for unlimited [0]

Frozen state files:
-F, --freeze-state=FILE
produce a frozen state on FILE at end

-R, --reload-state=FILE
reload a frozen state from FILE at start

Debugging:
-d, --debug[=FLAGS]
set debug level (no FLAGS implies `aeq')

--debugfile[=FILE]
redirect debug and trace output to FILE (default stderr, discard if empty string)

-l, --arglength=NUM
restrict macro tracing size

-t, --trace=NAME
trace NAME when it is defined

FLAGS is any of:
a show actual arguments

c show before collect, after collect and after call

e show expansion

f say current input file name

i show changes in input files

l say current input line number

p show results of path searches

q quote values as necessary, with a or e flag

t trace for all macro calls, not only traceon'ed

x add a unique macro call id, useful with c flag

V shorthand for all of the above flags

If defined, the environment variable `M4PATH' is a colon-separated list of directories
included after any specified by `-I'.

Exit status is 0 for success, 1 for failure, 63 for frozen file version mismatch, or
whatever value was passed to the m4exit macro.

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