Hello Gurus,
We have a requirement to count the valid number of records in a comma delimited file with double quotes.
The catch here is..few records have a new line carriage within the double quotes,,say for ex:we have a file called accounts the record count is 4827..but the actual valid count... (5 Replies)
i use unix command to take the record count for a file1
awk 'END{print NR}' filename
i already have a file2 which conatin the count like
...
..
rec_cnt=100
..
..
I want to replace the record in the file2 using the record i take from file1.
suggest me some simple ways of doing it... (2 Replies)
Hello All,
I have come across a small problem. It would be great if any of you could help me in resolving the issue.
one file named dummy.txt will be ftped to Unix machine twice daily. If i receive it second time in a day i need to do some processing with the file.
How to find the... (2 Replies)
Hi,
I have a requirement in hand:
I have a file with millions of records say file 1.I have another file, say file 2 which has 2000 records in it. The requirement is to read file2 , and remove the read record from file 1 and move i to a seperate file, file 3.
For eg: Read file 2, get the... (5 Replies)
I have file listed in my directory in following format
-rwxrwxr-x+ 1 test test 4.9M Oct 3 16:06 test20141002150108.txt
-rwxrwxr-x+ 1 test test 4.9M Oct 4 16:06 test20141003150108.txt
-rwxrwxr-x+ 1 test test 4.9M Oct 5 16:06 test20141005150108.txt
-rwxrwxr-x+ 1 test ... (2 Replies)
Hi,
Very good wishes to all!
Please help to provide the shell script for generating the record counts in filed wise from the .csv file
My question:
Source file:
Field1 Field2 Field3
abc 12f sLm
1234 hjd 12d
Hyd 34
Chn
My target file should generate the .csv file with the... (14 Replies)
Hi all;
Here is my file:
V1.3=4
V1.4=5
V1.1=3
V1.2=6
V1.3=6
Please, can you help me to write a script shell that counts the sum of values in my file (4+5+3+6+6) ?
Thank you so much for help.
Kind regards. (3 Replies)
Hi All ,
We need one help on the below requirement.We have multiple pipe delimited .txt file(around 100 .txt files) present on one directory.We need the total record count of all the files present in that directory without header.File format as below :
... (8 Replies)
Discussion started by: STCET22
8 Replies
LEARN ABOUT V7
tm
TM(4) Kernel Interfaces Manual TM(4)NAME
tm - TM-11/TU-10 magtape interface
DESCRIPTION
The files mt0, ..., mt7 refer to the DEC TU10/TM11 magtape. When closed it can be rewound or not, see below. If it was open for writing,
two end-of-files are written. If the tape is not to be rewound it is positioned with the head between the two tapemarks.
If the 0200 bit is on in the minor device number the tape is not rewound when closed.
A standard tape consists of a series of 512 byte records terminated by an end-of-file. To the extent possible, the system makes it possi-
ble, if inefficient, to treat the tape like any other file. Seeks have their usual meaning and it is possible to read or write a byte at a
time. Writing in very small units is inadvisable, however, because it tends to create monstrous record gaps.
The mt files discussed above are useful when it is desired to access the tape in a way compatible with ordinary files. When foreign tapes
are to be dealt with, and especially when long records are to be read or written, the `raw' interface is appropriate. The associated files
are named rmt0, ..., rmt7. Each read or write call reads or writes the next record on the tape. In the write case the record has the same
length as the buffer given. During a read, the record size is passed back as the number of bytes read, provided it is no greater than the
buffer size; if the record is long, an error is indicated. In raw tape I/O, the buffer must begin on a word boundary and the count must be
even. Seeks are ignored. A zero byte count is returned when a tape mark is read, but another read will fetch the first record of the new
tape file.
FILES
/dev/mt?, /dev/rmt?
SEE ALSO tp(1)BUGS
If any non-data error is encountered, it refuses to do anything more until closed. In raw I/O, there should be a way to perform forward
and backward record and file spacing and to write an EOF mark.
TM(4)