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Shell Programming and Scripting
Extracting regular expression
Post 302249864 by Giordano Bruno on Wednesday 22nd of October 2008 08:53:48 AM
10-22-2008
Extracting regular expression
Hi there,
I need to extract from a long txt file only lines like this:
20 1.0000e+00 5.4392e-02 2.4665e+02
I've looked for a way by using sed, but I couldn't find the right way...
Any help would be appreciated!!!
I need to extract from a long txt file only lines like this:
20 1.0000e+00 5.4392e-02 2.4665e+02
I've looked for a way by using sed, but I couldn't find the right way...
Any help would be appreciated!!!
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LEARN ABOUT SUSE
ausearch_add_regex
AUSEARCH_ADD_REGEX(3) Linux Audit API AUSEARCH_ADD_REGEX(3) NAME
ausearch_add_regex - use regular expression search rule SYNOPSIS
#include <auparse.h> int ausearch_add_regex(auparse_state_t *au, const char *expr); DESCRIPTION
ausearch_add_regex adds one search condition based on a regular expression to the current audit search expression. The search conditions can then be used to scan logs, files, or buffers for something of interest. The regular expression follows the posix extended regular expression conventions, and is matched against the full record (without interpreting field values). If an existing search expression E is already defined, this function replaces it by (E && this_regexp). RETURN VALUE
Returns -1 if an error occurs; otherwise, 0 for success. SEE ALSO
ausearch_add_expression(3), ausearch_add_item(3), ausearch_clear(3), ausearch_next_event(3), regcomp(3). AUTHOR
Steve Grubb Red Hat Sept 2007 AUSEARCH_ADD_REGEX(3)