11-05-2008
Delete a single record from a file
Hello all,
Is there a function for deleting a single record from a file?
Thanks in advance...
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Hi All,
I'm a newbie here, I'm just wondering on how to delete a single record in a large file in unix.
ex.
file1.txt is 1000 records
nikki1
nikki2
nikki3
what i want to do is delete the nikki2 record in file1.txt. is it possible?
Please advise,
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LEARN ABOUT OPENSOLARIS
sdp_delete_media
sdp_delete_media(3COMMPUTIL) Communication Protocol Parser Utilities Library Functions sdp_delete_media(3COMMPUTIL)
NAME
sdp_delete_media, sdp_delete_attribute - delete the specified media or attribute from the appropriate list
SYNOPSIS
cc [ flag...] file... -lcommputil [ library...]
#include <sdp.h>
int sdp_delete_media(sdp_media_t **l_media, sdp_media_t *media);
int sdp_delete_attribute(sdp_attr_t **l_attr, sdp_attr_t *attr);
DESCRIPTION
The sdp_delete_media() function deletes the specified media from the media list. It is similar to deleting a node in a linked list. The
function first finds the media that needs to be deleted using sdp_find_media(3COMMPUTIL). The found media is then passed to
sdp_delete_media() to delete it. The function frees the memory allocated to media structure after deleting it.
The sdp_delete_attribute() function deletes the specified attribute from the attribute list. It is similar to deleting a node in a linked
list. The function first finds the attribute that needs to be deleted using sdp_find_media_rtpmap(3COMMPUTIL) or sdp_find_attribute(3COMM-
PUTIL). The found attribute is then passed to sdp_delete_attribute() to delete it. The function frees the memory allocated to attribute
structure after deleting it.
RETURN VALUES
Upon successful completion, these functions return 0. Otherwise, the appropriate error value is returned. The value of errno is not changed
by these calls in the event of an error.
ERRORS
These functions will fail if:
EINVAL The mandatory input parameters are not provided or are NULL.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |Safe |
+-----------------------------+-----------------------------+
SEE ALSO
libcommputil(3LIB), sdp_find_attribute(3COMMPUTIL), sdp_find_media(3COMMPUTIL), sdp_find_media_rtpmap(3COMMPUTIL), attributes(5)
SunOS 5.11 12 Oct 2007 sdp_delete_media(3COMMPUTIL)