04-16-2008
Problems with regular expressions
Hi ,
I am reading data from a log file.
The log file will be like this :
19:40:25 DEBUG : Failed xml-common.noarch 0-0.6.3-18 - u
19:40:25 ERROR : Batch failed
19:40:25 DEBUG : Batch exited with ERROR 104
19:40:25 ERROR : Batch exited with ERROR 105
19:40:25 DEBUG : Batch exited with ERROR 104
19:40:25 INFO : Batch exited with ERROR 105
I am reading this log file line by line.
I need to store the line which contain " *Batch exited with ERROR *" in a variable using regular expressions.
I am triyng something like this
cat Mytest.log | while read data
do
TEST=`echo $data | grep __________
echo $TEST
done
Can any one complete my grep command ? or suggest any other logic?
Regards
Subin
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LEARN ABOUT NETBSD
re_comp
RE_COMP(3) BSD Library Functions Manual RE_COMP(3)
NAME
re_comp, re_exec -- regular expression handler
LIBRARY
Compatibility Library (libcompat, -lcompat)
SYNOPSIS
#include <re_comp.h>
char *
re_comp(const char *s);
int
re_exec(const char *s);
DESCRIPTION
This interface is made obsolete by regex(3). It is available from the compatibility library, libcompat.
The re_comp() function compiles a string into an internal form suitable for pattern matching. The re_exec() function checks the argument
string against the last string passed to re_comp().
The re_comp() function returns 0 if the string s was compiled successfully; otherwise a string containing an error message is returned. If
re_comp() is passed 0 or a null string, it returns without changing the currently compiled regular expression.
The re_exec() function returns 1 if the string s matches the last compiled regular expression, 0 if the string s failed to match the last
compiled regular expression, and -1 if the compiled regular expression was invalid (indicating an internal error).
The strings passed to both re_comp() and re_exec() may have trailing or embedded newline characters; they are terminated by NULs. The regu-
lar expressions recognized are described in the manual entry for ed(1), given the above difference.
DIAGNOSTICS
The re_exec() function returns -1 for an internal error.
The re_comp() function returns one of the following strings if an error occurs:
No previous regular expression,
Regular expression too long,
unmatched (,
missing ],
too many () pairs,
unmatched ).
SEE ALSO
ed(1), egrep(1), ex(1), fgrep(1), grep(1), regex(3)
HISTORY
The re_comp() and re_exec() functions appeared in 4.0BSD.
BSD
June 4, 1993 BSD