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Top Forums Shell Programming and Scripting Pattern searching pattern in c files Post 302146072 by Franklin52 on Saturday 17th of November 2007 06:13:49 AM
Old 11-17-2007
The -n option suppresses the automatic output of input lines (that's the default).
The p at the end tells sed to output the lines that matches.

Code:
[0-9a-zA-Z] *

This searches for lines at the left side of the division operator.
The characters within the brackets search for a numeric character or a variable and the space and asteric after the brackets for zero or more spaces.

Code:
\/

This is the escaped division operator.

Code:
 *[0-9a-zA-Z]*

At the right side of the division operator we search for zero or more preceded spaces and a numeric character or a variable.

Regards

Last edited by Franklin52; 11-17-2007 at 09:50 AM.. Reason: typo
 

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gmatch(3GEN)					     String Pattern-Matching Library Functions					      gmatch(3GEN)

NAME
gmatch - shell global pattern matching SYNOPSIS
cc [ flag ... ] file ... -lgen [ library ... ] #include <libgen.h> int gmatch(const char *str, const char *pattern); DESCRIPTION
gmatch() checks whether the null-terminated string str matches the null-terminated pattern string pattern. See the sh(1), section File Name Generation, for a discussion of pattern matching. A backslash () is used as an escape character in pattern strings. RETURN VALUES
gmatch() returns non-zero if the pattern matches the string, zero if the pattern does not. EXAMPLES
Example 1 Examples of gmatch() function. In the following example, gmatch() returns non-zero (true) for all strings with "a" or "-" as their last character. char *s; gmatch (s, "*[a-]" ) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
sh(1), attributes(5) NOTES
When compiling multithreaded applications, the _REENTRANT flag must be defined on the compile line. This flag should only be used in mul- tithreaded applications. SunOS 5.11 29 Dec 1996 gmatch(3GEN)
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