what am trying to do is delete a line in a specific file but I dont know what to do. I cant use the sed or awk commands because these commands dont really alter the original file. they only alter what they display on the screen
by the way, am trying to do this from a script so if anybody can... (5 Replies)
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Dear All,
I am working with windoes OS but remote a linux machine. I wonder the way to copy an paste some part of a huge file in linux machine.
the contain of file like as follow:
...
dump annealling all custom 10 anneal_*.dat id type x y z q
timestep 0.02
run 200000
Memory... (2 Replies)
Hi,
I would like to clarify about the NAWK array to store multiple lines from huge file.
The file is having an unique REF.NO, I wants to store the lines (it may be
100+ lines) till I found the new REF.NO.
How can I apply NAWK - arrays for the above?
Rgds,
sharif. (1 Reply)
I met a problem on HPUX with 64G RAM and 20 CPU.
There are 5 million files with file name from file0000001.dat to file9999999.dat, in the same directory, and with some other files with random names.
I was trying to remove all the files from file0000001.dat to file9999999.dat at the same time.... (9 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
into small files. i need to add a head.txt and tail.txt into small files at the begin and end, and give a name as q1.xml q2.xml q3.xml ....
thank you very much. (2 Replies)
Hi,
I have a huge file with a single line.
But I want to break that line into lines of with each line having five columns.
My file is like this:
code:
"hi","there","how","are","you?","It","was","great","working","with","you.","hope","to","work","you."
I want it like this:
code:... (1 Reply)
Hello,
I have file of more than 10000 lines.
I want to delete 40 lines after every 20 lines.
e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on.
Please let me know how i can do it.
Best regards, (11 Replies)
Discussion started by: nehashine
11 Replies
LEARN ABOUT NETBSD
pfs
PFS(8) BSD System Manager's Manual PFS(8)NAME
pfs -- save and restore information for NAT and state tables
SYNOPSIS
pfs [-v] -l
pfs [-bv] -R filename
pfs [-bv] -r filename
pfs [-v] -u
pfs [-bv] -W filename
pfs [-bv] -w filename
DESCRIPTION
The pfs command allows state information created for NAT entries and rules using ``keep state'' to be locked (modification prevented) and
then saved to disk, allowing for the system to experience a reboot, followed by the restoration of that information, resulting in connections
not being interrupted.
OPTIONS -b The information are read or stored using binary format. The default format is a readable ASCII format, similar to pfctl.conf
syntax.
-l Lock state tables in the kernel.
-R filename Restore information from filename and load it into the kernel. The state tables are locked at the beginning of this operation
and unlocked once complete.
-r filename Read information in from filename and load it into the kernel. This requires the state tables to have already been locked and
does not change the lock once complete.
-u Unlock state tables in the kernel.
-v Provide a verbose description of what's being done.
-W filename Write information from the kernel out to filename. The state tables are locked at the beginning of this operation and
unlocked once complete.
-w filename Write information from the kernel out to filename. This requires the state tables to have already been locked and does not
change the lock once complete.
FILES
/dev/pf
SEE ALSO pf(4)BSD July 21, 2009 BSD