What's wrong my sed? Post: 302667985

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Top Forums Shell Programming and Scripting What's wrong my sed? Post 302667985 by yanglei_fage on Sunday 8th of July 2012 10:58:25 AM

07-08-2012

Registered User

Quote:

Originally Posted by Scrutinizer

That will not work, since then all every time all lines that are not equal to the search string, will get printed.. You would need to test grep's return code and print "$line" if it is non-zero...

The sed command will not work because of the / delimiter, the is also contained in the files so that breaks the command... You would need to use another delimiter..

try:

Code:

awk 'NR==FNR{A[$1]; next} !($2 in A)' file1 file2

---
On Solaris use /usr/xpg4/bin/awk rather than awk

Hi,

Nothing output from above awk line

"The sed command will not work because of the / delimiter"
if I change the sed to sed -i '%${line}%d' file2 it still get error

Code:

sed: -e expression #1, char 1: unknown command: `%'

---------- Post updated at 07:58 AM ---------- Previous update was at 07:16 AM ----------

Quote:

Originally Posted by yanglei_fage

Hi,

Nothing output from above awk line

"The sed command will not work because of the / delimiter"
if I change the sed to " sed -i '%${line}%d' file2" it still get error
sed: -e expression #1, char 1: unknown command: `%'

with your awk it ouput lots of line not expected

yanglei_fage

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cxref-cpp

cxref-cpp(1)						      General Commands Manual						      cxref-cpp(1)

NAME

       cxref-cpp - A modified C preprocessor to use with cxref.

SYNOPSIS

       cxref-cpp ...

DESCRIPTION

       To  improve  the  output  that  is available for the source code for cross-referencing a modified version of the GNU CPP v2.7.2 is supplied
       (named cxref-cpp).

       This modified C preprocessor allows for a finer control over some features of the preprocessing that are not important for a compiler.	In
       a  standard  preprocessor, the preprocessor directives are intended for use only by the preprocessor, so passing the information through is
       not important.

       With cxref-cpp, there are some features that are different to the standard GNU CPP:

	      Compared to gcc versions earlier than version 2.8.0 there is an extra option that will output the #include  lines  from  the  source
	      file.  In version 2.8.0 and later this option is present.

	      Comments	trailing  a  #include  or  a  #define are not preserved by all versions of gcc even if the -C option is used.  This is not
	      important while compiling, but is useful for documenting.

	      The cxref-cpp program will take on the personality of the installed version of gcc so that the gcc header files can be parsed.  This
	      means  that it includes the same default include directory paths and macro definitions.  The file that contains these definitions is
	      called cxref-cpp.defines and is installed by the cxref-cpp-configure program or specified by  the  -cxref-cpp-defines  command  line
	      option.

OPTIONS

       The same as for gcc, apart from '-cxref-cpp-defines' described above.

SEE ALSO

       cxref(1), cxref-cpp-configure(1), gcc(1)

								    May 9, 2004 						      cxref-cpp(1)