It can't be that hard, but I just can't figure it out:
I have file like:
File Sub-brick M_1 S_1 M_2 S_2 M_4 S_4 ...
xxx 1 214 731 228 621 132 578 ...
and would like to get 0 0 where M_3 S_3 is missing
xxx 1 214 731 228 621 0 0 132 578 ...
I wrote following script, but can't figure out... (3 Replies)
Hi all,
I have a file that contains about 1000 rows and 800 columns. Nearly every row has 800 columns but some DONT. I want to extend the rows that dont have values with NA's. Here is an example:
my file
bob 2 4 5 6 8 9 4 5
tar 2 4 5 4 3 2 9 1
bro 3 5 3 4
yar 2 ... (7 Replies)
I have a file containing about 5 million rows, in the file there are some records which has extra delimiter at random position. (we dont know the positions), now we have to Count the delimeter from each row and if the count of delimeter is not matching then I want to delete those rows from the... (5 Replies)
Hello,
I have a file which lines' words are comma separated:
aa, bb, cc, uu b, ee, ff
bb, cc, zz, ee, ss, kk
oo, bb, hh, uu a, xx, ww
tt, aa, dd, yy aa, gg
I want to sort first by second column and in case of tie by fourth column with sort command.
So the output would be:
... (4 Replies)
Hi All,
My file has the records as below:
aaa\bbb\c\dd\ee\ff\gg
zz\vv\ww
pp\oo\ii\uu
How can I get the value after the last delimeter.
My o/p:
gg
ww
uu
Thanks in Advance, (5 Replies)
Hi Friends,
I have a file1.txt as below
29123973Ç2012-0529Ç35310124Ç000000000004762Ç00010Ç20Ç390ÇÇÇÇF
29123974Ç20120529Ç35310125Ç0000000000046770Ç00010Ç20Ç390ÇÇÇÇF
29123975Ç20120529Ç35310126Ç0000000000046804Ç00010Ç20Ç390ÇÇÇÇF
29123976Ç20120529Ç35310127Ç0000000000044820Ç00010Ç20Ç390ÇÇÇÇF
i have a file2.txt... (4 Replies)
Hello,
I have a bilingual database with the following structure
a,b,c=d,e,f
The right half is in a Left to right script and the second is in a Right to left script as the examples below show
What I need is to separate out the database such that the first word on the left hand matches the first... (4 Replies)
Please help me to update a file which contains date values as below:-
From:-
"1912108",20161130,"2016-12-01-00.00.00.000000","2016-12-01-08.37.12.000000"
"1912108",20161201,"2016-12-02-00.00.00.000000","2016-12-02-08.28.22.000000"
To:-
"1912108",2016-11-30,"2016-12-01... (7 Replies)
I have a large database with the following structure:
Indicword,Indicword,Indicword=English
on a line.
Not all lines will have this structure. Some might have a single word mapping to a single word in Indic.
An example will make this clear
... (4 Replies)
I have a file
H,20180624200732,VPAS,TRANS_HDR,20180724,
VPAS.TRANS_HDR.20180724.01.txt, ,93,
T,1,
I have to change and instead first comma put ",1" like below
H,20180624200732,VPAS,TRANS_HDR,20180724,
VPAS.TRANS_HDR.20180724.01.txt,1,93,
T,1,
I made
sed "2s/, /,1/"... (8 Replies)
Discussion started by: digioleg54
8 Replies
LEARN ABOUT FREEBSD
badsect
BADSECT(8) BSD System Manager's Manual BADSECT(8)NAME
badsect -- create files to contain bad sectors
SYNOPSIS
badsect bbdir sector ...
DESCRIPTION
The badsect utility makes a file to contain a bad sector. Normally, bad sectors are made inaccessible by the standard formatter, which pro-
vides a forwarding table for bad sectors to the driver. If a driver supports the bad blocking standard it is much preferable to use that
method to isolate bad blocks, since the bad block forwarding makes the pack appear perfect, and such packs can then be copied with dd(1).
The technique used by this program is also less general than bad block forwarding, as badsect cannot make amends for bad blocks in the i-list
of file systems or in swap areas.
On some disks, adding a sector which is suddenly bad to the bad sector table currently requires the running of the standard DEC formatter.
Thus to deal with a newly bad block or on disks where the drivers do not support the bad-blocking standard badsect may be used to good
effect.
The badsect utility is used on a quiet file system in the following way: First mount the file system, and change to its root directory. Make
a directory BAD there. Run badsect giving as argument the BAD directory followed by all the bad sectors you wish to add. (The sector num-
bers must be relative to the beginning of the file system, but this is not hard as the system reports relative sector numbers in its console
error messages.) Then change back to the root directory, unmount the file system and run fsck(8) on the file system. The bad sectors should
show up in two files or in the bad sector files and the free list. Have fsck(8) remove files containing the offending bad sectors, but do
not have it remove the BAD/nnnnn files. This will leave the bad sectors in only the BAD files.
The badsect utility works by giving the specified sector numbers in a mknod(2) system call, creating an illegal file whose first block
address is the block containing bad sector and whose name is the bad sector number. When it is discovered by fsck(8) it will ask ``HOLD BAD
BLOCK ?''. A positive response will cause fsck(8) to convert the inode to a regular file containing the bad block.
DIAGNOSTICS
The badsect utility refuses to attach a block that resides in a critical area or is out of range of the file system. A warning is issued if
the block is already in use.
SEE ALSO fsck(8)HISTORY
The badsect utility appeared in 4.1BSD.
BUGS
If more than one sector which comprise a file system fragment are bad, you should specify only one of them to badsect, as the blocks in the
bad sector files actually cover all the sectors in a file system fragment.
BSD June 5, 1993 BSD