09-24-2010
sed to find pattern and delete line before and after
I have the following file:
line1
line2
MATCH
line3
line4
I need to find the pattern, "MATCH" and delete the line before and after MATCH. So the result should be
line1
MATCH
lline4
I have to use sed because it is the only utility that is common across my environments. I found the following sed command but it does not print the last line of the file.
sed -i.bak -n -e'1h' -e'1!H' -e '/MATCH/{p;n;n;h;d}' -e 1b -e 'x;P' filename
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FC-MATCH(1) FC-MATCH(1)
NAME
fc-match - match available fonts
SYNOPSIS
fc-match [ -asvVh ] [ --all ] [ --sort ] [ --verbose ] [ [ -f format ] [ --format format ] ] [ --version ] [ --help ]
[ pattern [ element... ] ]
DESCRIPTION
fc-match matches pattern (empty pattern by default) using the normal fontconfig matching rules to find the best font available. If --sort
is given, the sorted list of best matching fonts is displayed. The --all option works like --sort except that no pruning is done on the
list of fonts.
If any elements are specified, only those are printed. Otherwise short file name, family, and style are printed, unless verbose output is
requested.
OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included
below.
-a Displays sorted list of best matching fonts, but do not do any pruning on the list.
-s Displays sorted list of best matching fonts.
-v Print verbose output of the whole font pattern for each match, or elements if any is provided.
-f Format output according to the format specifier format.
-V Show version of the program and exit.
-h Show summary of options.
pattern
Displays fonts matching pattern (uses empty pattern by default).
element
If set, the element property is displayed for matching fonts.
SEE ALSO
fc-list(1) FcFontMatch(3) FcFontSort(3) FcPatternFormat(3) fc-cat(1) fc-cache(1) fc-pattern(1) fc-query(1) fc-scan(1)
The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html.
AUTHOR
This manual page was updated by Patrick Lam <plam@csail.mit.edu>.
Aug 13, 2008 FC-MATCH(1)