NAME¶
inplace - emulate sed/perl/ruby in-place editing
SYNOPSIS¶
@load "inplace"
# Please set INPLACE_SUFFIX to make a backup copy. For example, you may
# want to set INPLACE_SUFFIX to .bak on the command line or in a BEGIN rule.
BEGINFILE {
inplace_begin(FILENAME, INPLACE_SUFFIX)
}
ENDFILE {
inplace_end(FILENAME, INPLACE_SUFFIX)
}
DESCRIPTION¶
The
inplace extension adds two functions named
inplace_begin() and
inplace_end(). These functions are meant to be invoked from the
inplace.awk wrapper (whose contents are displayed above) which is
installed when
gawk is.
By default, each named file on the command line is replaced with a new file of
the same name whose contents are the results of running the AWK program. If
the user supplies an AWK variable named
INPLACE_SUFFIX in a
BEGIN rule or on the command line, then the
inplace extension
concatenates that suffix onto the original filename and uses the result as a
filename for renaming the original.
EXAMPLE¶
gawk -i inplace ' script' files ...
gawk -i inplace -f scriptfile files ...
SEE ALSO¶
GAWK: Effective AWK Programming,
filefuncs(3am),
fnmatch(3am),
fork(3am),
ordchr(3am),
readdir(3am),
readfile(3am),
revoutput(3am),
rwarray(3am).
AUTHOR¶
Andrew Schorr,
schorr@telemetry-investments.com.
COPYING PERMISSIONS¶
Copyright © 2012, 2013, Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of this manual page
provided the copyright notice and this permission notice are preserved on all
copies.
Permission is granted to copy and distribute modified versions of this manual
page under the conditions for verbatim copying, provided that the entire
resulting derived work is distributed under the terms of a permission notice
identical to this one.
Permission is granted to copy and distribute translations of this manual page
into another language, under the above conditions for modified versions,
except that this permission notice may be stated in a translation approved by
the Foundation.