07-05-2008
Quote:
grep fff `perl -e 'some regular expression` $a `
i) not every ` resp. ' is closed => can't work
ii) tcsh does threat $something inside backticks as variables
iii) if you need backticks inside backticks use \` to escape them, so they won't get evaluated by the "surrounding" shell
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LEARN ABOUT FREEBSD
lessecho
LESSECHO(1) General Commands Manual LESSECHO(1)
NAME
lessecho - expand metacharacters
SYNOPSIS
lessecho [-ox] [-cx] [-pn] [-dn] [-mx] [-nn] [-ex] [-a] file ...
DESCRIPTION
lessecho is a program that simply echos its arguments on standard output. But any metacharacter in the output is preceded by an "escape"
character, which by default is a backslash.
OPTIONS
A summary of options is included below.
-ex Specifies "x", rather than backslash, to be the escape char for metachars. If x is "-", no escape char is used and arguments con-
taining metachars are surrounded by quotes instead.
-ox Specifies "x", rather than double-quote, to be the open quote character, which is used if the -e- option is specified.
-cx Specifies "x" to be the close quote character.
-pn Specifies "n" to be the open quote character, as an integer.
-dn Specifies "n" to be the close quote character, as an integer.
-mx Specifies "x" to be a metachar. By default, no characters are considered metachars.
-nn Specifies "n" to be a metachar, as an integer.
-fn Specifies "n" to be the escape char for metachars, as an integer.
-a Specifies that all arguments are to be quoted. The default is that only arguments containing metacharacters are quoted
SEE ALSO
less(1)
AUTHOR
This manual page was written by Thomas Schoepf <schoepf@debian.org>, for the Debian GNU/Linux system (but may be used by others).
Send bug reports or comments to bug-less@gnu.org.
Version 458: 04 Apr 2013 LESSECHO(1)