I am spooling a file from oracle and trying to delete the last line of the spooled file which I am unable to do.
Problem is that this file can have multiple records each time and I have no way of knowing how many because the amount can vary. I had an idea of using a while loop to read the... (1 Reply)
I am trying deleting lines from a text file using sed..
sed '/OBJECT="ABC/{N;N;N;d; }'
will do if i have to delete lines starting with Object and next 3 lines
but I was looking for a way to delet lines starting with OBJECT and all the lines till it reaches a blank lines ..or it reaches a... (8 Replies)
I have a very large log file and it speed up scrolling.
so I want to tail last 500 lies and see using vi editor.
tail -n 500 large_file | small_file | vi {};
this won't work.
I'm very novice on Unix.
TIA. (2 Replies)
I have a log file that I am processing. This contains messages from and to a server (requests and responses).
The responses to requests may not be in order i.e. we can have a response to a request after several requests are sent, and in some error cases there may not be any response message.
... (2 Replies)
Is it possible to delete lines by their number? Also, I'd like to delete the last 3 rows of a file too. So from the front and back. Thanks. (9 Replies)
hi all,
i have got a scenario in which i need to delete all the lines that ends with file names.
e.g.
input can be
cms/images/services_icons/callback.png
cms/cms/images/services_icons/sync.php
cms/cms/images/services_icons
and output should be
cms/cms/images/services_icons
... (13 Replies)
Hello, im using ex to manipulate some text. Im trying to delete all the lines except those on which a certain regex can be found.
the important part of the script:
ex temp << 'HERE'
g/regex/p
HERE
this command prints the lines I want to end up with, but it doesnt delete the others.... (2 Replies)
I have a directory question where I ask the user which entry he wants to delete...
echo "Which entry?"
read entry
sed '/^'$entry'/d' file
This code does in fact delete that particular entry...
HOWEVER, when I go to inquire about that same entry, it still populates like it was never... (4 Replies)
Discussion started by: itech4814
4 Replies
LEARN ABOUT OPENSOLARIS
volmgt_symdev
volmgt_symname(3VOLMGT) Volume Management Library Functions volmgt_symname(3VOLMGT)NAME
volmgt_symname, volmgt_symdev - convert between Volume Management symbolic names, and the devices that correspond to them
SYNOPSIS
cc [ flag ... ] file ... -lvolmgt [ library ... ]
#include <volmgt.h>
char *volmgt_symname(char *pathname);
char *volmgt_symdev(char *symname);
DESCRIPTION
This function is obsolete. The management of removable media by the Volume Management feature, including vold, has been replaced by soft-
ware that supports the Hardware Abstraction Layer (HAL). Programmatic support for HAL is through the HAL APIs, which are documented on the
HAL web site. See hal(5). The return value of this function is undefined.
These two routines compliment each other, translating between Volume Management's symbolic name for a device, called a symname, and the
/dev pathname for that same device.
volmgt_symname() converts a supplied /dev pathname to a symname, Volume Management's idea of that device's symbolic name.
volmgt_symdev() does the opposite conversion, converting between a symname, Volume Management's idea of a device's symbolic name for a vol-
ume, to the /dev pathname for that device.
RETURN VALUES
The return from this function is undefined.
ERRORS
volmgt_symname() can fail, returning a null string pointer, if a stat(2) of the supplied pathname fails, or if an open(2) of /dev/volctl
fails, or if any of the following is true:
ENXIO Volume Management is not running.
EINTR An interrupt signal was detected while trying to convert the supplied pathname to a symname.
volmgt_symdev() can fail if an open(2) of /dev/volctl fails, or if any of the following is true:
ENXIO Volume Management is not running.
EINTR An interrupt signal was detected while trying to convert the supplied symname to a /dev pathname.
EXAMPLES
Example 1 Testing Floppies
The following tests how many floppies Volume Management currently sees in floppy drives (up to 10):
for (i=0; i < 10; i++) {
(void) sprintf(path, "floppy%d", i);
if (volmgt_symdev(path) != NULL) {
(void) printf("volume %s is in drive %d
",
path, i);
}
}
Example 2 Finding The Symbolic Name
This code finds out what symbolic name (if any) Volume Management has for /dev/rdsk/c0t6d0s2:
if ((nm = volmgt_symname("/dev/rdsk/c0t6d0s2")) == NULL) {
(void) printf("path not managed
");
} else {
(void) printf("path managed as %s
", nm);
}
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
|Interface Stability |Obsolete |
+-----------------------------+-----------------------------+
SEE ALSO cc(1B), open(2), stat(2), free(3C), malloc(3C), volmgt_check(3VOLMGT), volmgt_inuse(3VOLMGT), volmgt_running(3VOLMGT), attributes(5),
hal(5)SunOS 5.11 8 Mar 2007 volmgt_symname(3VOLMGT)