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Full Discussion: Cut the data with a string that has \ in it
Top Forums Shell Programming and Scripting Cut the data with a string that has \ in it Post 303019854 by Don Cragun on Sunday 8th of July 2018 07:53:12 PM
Old 07-08-2018
Expanding a little bit on what RudiC said in post #4 in this thread, shell variable expansions do not occur in single-quoted strings. What chandan.chaman suggested in post #5 would also work, but is more complicated than is needed.

Are backslash characters the only characters that are special in basic regular expressions that might appear in the text you want to replace? (Note that other BRE special characters include the period, opening square bracket (i.e., [), asterisk, circumflex, and dollar sign).

Are you creating the search pattern and replacement strings (so you can escape "special" characters)? Or, are they created by users invoking your script?

Does the pattern you want to replace in your file only occur once in your file? Or, can it appear on several lines in your file? Can it ever occur more than once on a single line in your file (and need to have every occurrence replaced)? If the pattern is to be treated as a literal string and doesn't need to be replaced more than once on any line, you might want to use awk's index() function to find your pattern and use substr() a couple of times to do the replacements instead of using sed's or ed's substitute command or awk's sub() or gsub() function to replace your text.
 

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LEARN ABOUT DEBIAN

asn1_expand_any_defined_by

asn1_expand_any_defined_by(3)					     libtasn1					     asn1_expand_any_defined_by(3)

NAME

       asn1_expand_any_defined_by - API function

SYNOPSIS

       #include <libtasn1.h>

       asn1_retCode asn1_expand_any_defined_by(ASN1_TYPE definitions, ASN1_TYPE * element);

ARGUMENTS

       ASN1_TYPE definitions
		   ASN1 definitions

       ASN1_TYPE * element
		   pointer to an ASN1 structure

DESCRIPTION

       Expands	every  "ANY  DEFINED  BY" element of a structure created from a DER decoding process (asn1_der_decoding function). The element ANY
       must be defined by an OBJECT IDENTIFIER. The type used to expand the element ANY is the first one following the definition  of  the  actual
       value of the OBJECT IDENTIFIER.

RETURNS

       ASN1_SUCCESS if Substitution OK, ASN1_ERROR_TYPE_ANY if some "ANY DEFINED BY" element couldn't be expanded due to a problem in OBJECT_ID ->
       TYPE association, or other error codes depending on DER decoding.

COPYRIGHT

       Copyright (C) 2006-2011 Free Software Foundation, Inc..
       Copying and distribution of this file, with or without modification, are permitted in any medium without  royalty  provided  the  copyright
       notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for libtasn1 is maintained as a Texinfo manual.  If the info and libtasn1 programs are properly installed at your
       site, the command

	      info libtasn1

       should give you access to the complete manual.

libtasn1							       2.13					     asn1_expand_any_defined_by(3)
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