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Full Discussion: Extract line between two patterns
Top Forums Shell Programming and Scripting Extract line between two patterns Post 302738619 by Don Cragun on Sunday 2nd of December 2012 05:34:42 AM
Old 12-02-2012
I believe this does what you want:
Code:
awk -F';' '/^COMMAND:/{
        found=1
        if(saved) print saved
}
/^REQUESTSTRING:/{
        if(found) saved = $1
}' input

----------------------------
Oops. I looked too closely at the expected output and missed the part about needing SEARCHPATTERN. The above script happens to work with the sample input, but is not correct in the general case.

What I should have said is something more like:
Code:
awk -F';' '/^COMMAND:/{
        if(fc && fs && saved) print saved
        fc = 1
        saved = ""
        fs = 0
}
/^REQUESTSTRING:/{
        if(fc) saved = $1
}
/SEARCHPATTERN/{
        fs = 1
}
END {   if(fc && fs && saved) print saved}' input

but elixir_sinari's proposal is shorter and should work fine as long as the input file doesn't violate the assumptions made. And, given the sample input, the assumptions look perfectly reasonable to me.
Last edited by Don Cragun; 12-02-2012 at 07:59 AM..
This User Gave Thanks to Don Cragun For This Post:
rajamohan
 

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LEARN ABOUT HPUX

setresuid

setresuid(2)							System Calls Manual						      setresuid(2)

NAME

       setresuid, setresgid - set real, effective, and saved user and group IDs

SYNOPSIS

DESCRIPTION

       sets the real, effective and/or saved user ID of the calling process.

       If  the	current  real,	effective  or saved user ID is equal to that of a user having appropriate privileges, sets the real, effective and
       saved user IDs to ruid, euid, and suid, respectively.  Otherwise, only sets the real, effective, and saved user IDs if ruid, euid, and suid
       each match at least one of the current real, effective, or saved user IDs.

       If ruid, euid, or suid is leaves the current real, effective or saved user ID unchanged.

       sets the real, effective and/or saved group ID of the calling process.

       If  the	current  real,	effective or saved user ID is equal to that of a user having appropriate privileges, sets the real, effective, and
       saved group ID to rgid, egid, and sgid, respectively.  Otherwise, only sets the real, effective and saved group ID if rgid, egid, and  sgid
       each match at least one of the current real, effective or saved group ID.

       If rgid, egid, or sgid is leaves the current real, effective or saved group ID unchanged.

   Security Restrictions
       Some  or  all  of  the actions associated with this system call require the privilege (CHSUBJIDENT).  Processes owned by the superuser will
       have this privilege.  Processes owned by other users may have this privilege, depending on system configuration.

       See privileges(5) for more information about privileged access on systems that support fine-grained privileges.

RETURN VALUE

       Upon successful completion, and return 0; otherwise, they return -1 and set to indicate the error.

ERRORS

       and fail if any of the following conditions are encountered:

	      ruid,	     euid, or suid (rgid, egid, or sgid) is not a valid user (group) ID.

	      None of the conditions above are met.

AUTHOR

       and were developed by HP.

SEE ALSO

       exec(2), getuid(2), setuid(2), privileges(5).

																      setresuid(2)
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