03-29-2009
SED/ AWK to do selective insert
I would appreciate if any one could give a handy one-liner in sed/awk to insert a line between two lines if and only if a condition is NOT fulfilled
sample input record:
*field* 1
*field* 2
*field* 3
*field* 1
*field* 3
sample output record:
*field* 1
*field* 2
*field* 3
*field* 1
*field* 2
*field* 3
insert word between two lines if word does not occur
else
leave as is.
I know to do this in perl, but I am just looking for an awk/sed command that would accomplish the same.
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LEARN ABOUT NETBSD
field_pad
FORMS(3) BSD Library Functions Manual FORMS(3)
NAME
field_back, field_fore, field_pad, set_field_back, set_field_fore, set_field_pad -- form library
LIBRARY
Curses Form Library (libform, -lform)
SYNOPSIS
#include <form.h>
chtype
field_back(FIELD *field);
chtype
field_fore(FIELD *field);
int
field_pad(FIELD *field);
int
set_field_back(FIELD *field, chtype attribute);
int
set_field_fore(FIELD *field, chtype attribute);
int
set_field_pad(FIELD *field, int pad);
DESCRIPTION
Calling the function field_back() will return the character attributes that will be applied to a field that is not the current field, these
attributes can be set by the set_field_back() function. The field_fore() function returns the character attributes that will be used to
indicate that a field is the currently active one on the form, this attribute may be set by using the set_field_fore() function. The pad
character for a field is the character that will be printed in all field locations not occupied with actual field contents. The pad charac-
ter can be retrieved by calling the field_pad() function, the pad character is set by using the set_field_pad() function.
RETURN VALUES
Functions returning pointers will return NULL if an error is detected. The functions that return an int will return one of the following
error values:
E_OK The function was successful.
SEE ALSO
curses(3), forms(3)
NOTES
The header <form.h> automatically includes both <curses.h> and <eti.h>.
BSD
January 1, 2001 BSD