All,
I am new to unix and i have the following requirement.
I have file(s) landing into input directory with timestamp, first i want to copy all these files into seperate directory then i want to rename these files without timestamp and also remove header,trailer from that file..
Could... (35 Replies)
Hi everyone,
I am new to Unix programming. My inquries is:-
a) How to add a Header and Trailer in the set of data
b) Include a number count of the data in the trailer
The set of data only contained the information of 'Customer's Name' and 'Account Number'. I would like to add the Header... (2 Replies)
How to append constant No of spaces suppose 52 at end of each line in a file (xyz) excluding first and last line.
Please Help me out for the same. (1 Reply)
Situation:
Our system currently executes a job (COBOL Program) that generates an interface file to be sent to one of our vendors. Because this system processes information for over 100,000 employees/retirees (and growing), we'd like to multi-thread the job into processing-groups in order to... (4 Replies)
Hi,
I have a command "get_data" with some parameters in few *.text files of a directory. I want to first find those files that contain this command and then append the following parameter to the end of the command.
example of an entry in the file :-
get_data -x -m50 /etc/web/getid
this... (1 Reply)
i have .DAT file FILE1.DAT
1200910270040625
2123456789 J123456 ABC
2123456789 K123456 ABC
2222222222 L123456 DEF
2333333333 M12345 GHI
30000004
My outfile FILE2.TXT should have like this, I need the header value as ie (1200910270040625 ) body rows remove the duplicate rows and the... (2 Replies)
Hi,
I want to add the below Header to all the files in sequence File1,File2,File3...etc
"ABC,<number of chracter in the file>"
e,g - If File1 is as below
pqrstuvdt
abcdefgh
then I want to add the above header into it ,So that File1 becomes as below
ABC,17
pqrstuvdt
abcdefgh
... (9 Replies)
Hi ,
My UNIX system is SUN Solaris.
I am trying to do a simple thing as described below.
I have a PIPE delimited file that has header and trailer. So the file is something like below:
Test1.txt looks like something below:
field_data1|field_data2|and some more data --Header
... (5 Replies)
I am planning to automate multiple files through Unix script.
Could you please guide for making the automation for multiple files ?
Eg.
I have to check header and footer for all files in the particular path and the header pattern should match with the filename.
Filename- Filename.txt... (2 Replies)
Discussion started by: karthick2020333
2 Replies
LEARN ABOUT PLAN9
pipe
PIPE(3) Library Functions Manual PIPE(3)NAME
pipe - two-way interprocess communication
SYNOPSIS
bind #| dir
dir/data
dir/ctl
dir/data1
dir/ctl1
DESCRIPTION
An attach(5) of this device allocates two new streams joined at the device end. X/data and x/ctl are the data and control channels of one
stream and x/data1 and x/ctl1 are the data and control channels of the other stream.
Data written to one channel becomes available for reading at the other. Write boundaries are preserved: each read terminates when the read
buffer is full or after reading the last byte of a write, whichever comes first.
Written data is buffered in kernel stream blocks. The writer will block once the stream is full, typically after 32768 bytes or 16 writes.
The writer will resume once the stream is less than half full.
If there are multiple writers, each write is guaranteed to be available in a contiguous piece at the other end of the pipe. If there are
multiple readers, each read will return data from only one write.
The pipe(2) system call performs an attach of this device and returns file descriptors to the new pipe's data and data1 files. The files
are open with mode ORDWR.
SEE ALSO pipe(2)SOURCE
/sys/src/9/port/devpipe.c
PIPE(3)