Hi....
I have a situation...I have a data file...that has space(an extra row with no data) at the end of file. I am trying to remove that spaces only if the file has a space at the end of file and if there is no space I don't want to do anything.
Can you please help me in this regards.
... (4 Replies)
Hi,
I just stuckup in doing some regular expressions on a file.
I have data which has multiple FHS and BTS segments like:
FHS|12121|LOCAL|2323
MSH|10101|POTAMAS|2323
PID|121221|THOMAS|DAVID|23432
OBX|2342|H1211|3232
BTS|0000|MERSTO|LIABLE
FHS|12121|LOCAL|2323
MSH|10101|POTAMAS|2323... (3 Replies)
Hello All,
I have a file with thousands of records:
eg:
|000222|123456987|||||||AARONSON| JOHN P|||PRIMARY |P
|000111|567894521|||||||ATHENS| WILLIAM k|||AAAA|L
Expected:
|000222|123456987|||||||AARONSON| JOHN |P|||PRIMARY |P
|000111|567894521|||||||ATHENS| WILLIAM |k|||AAAA|L
I... (6 Replies)
I have a flat file sample like this -
"COURSE"|"ddddd " " dddd"|"sssddd
sdsdsdsdx" dddddddd ffffff
"aaaaa" dddddddd ffffff
sdsdsd"|"xxxxxxx"|
"COURSE"|"ffff " " bbbb"|"lllll"|
The delimiter is pipe character (|) and the text are enclosed in double quotes... (5 Replies)
Hi All,
I have space delimited file similar to the one as shown below.. I need to convert it as a pipe delimited, the values inside the pipe delimited file should be as highlighted...
AA ATIU2345098809 009697 005374
BB ATIU2345097809 005445 006518
CC ATIU9685098809 003215 003571
DD... (7 Replies)
Hi,
I have tried to remove dublicate lines based on first column with pipe delimiter . but i ma not able to get some uniqu lines
Command : sort -t'|' -nuk1 file.txt
Input :
38376KZ|09/25/15|1.057
38376KZ|09/25/15|1.057
02006YB|09/25/15|0.859
12593PS|09/25/15|2.803... (2 Replies)
Hello,
Normally below script works, could you please comment out what could be the reason of failure if there are spaces in input filename:
script.sh
#!/bin/bash
cd /home/hts/.hts/tvh/
file="$1 $2 $3 $4"
read -d $'\x04' name < "$file"
/usr/bin/ffmpeg -i ""$name"" -vcodec copy -preset... (1 Reply)
Discussion started by: baris35
1 Replies
LEARN ABOUT NETBSD
pipe
PIPE(2) BSD System Calls Manual PIPE(2)NAME
pipe -- create descriptor pair for interprocess communication
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
int
pipe(int fildes[2]);
int
pipe2(int fildes[2], int flags);
DESCRIPTION
The pipe() function creates a pipe, which is an object allowing unidirectional data flow, and allocates a pair of file descriptors. The
first descriptor connects to the read end of the pipe, and the second connects to the write end, so that data written to fildes[1] appears on
(i.e., can be read from) fildes[0]. This allows the output of one program to be sent to another program: the source's standard output is set
up to be the write end of the pipe, and the sink's standard input is set up to be the read end of the pipe. The pipe itself persists until
all its associated descriptors are closed.
A pipe whose read or write end has been closed is considered widowed. Writing on such a pipe causes the writing process to receive a SIGPIPE
signal. Widowing a pipe is the only way to deliver end-of-file to a reader: after the reader consumes any buffered data, reading a widowed
pipe returns a zero count.
The pipe2() function behaves exactly like pipe() only it allows extra flags to be set on the returned file descriptor. The following flags
are valid:
O_CLOEXEC Set the ``close-on-exec'' property.
O_NONBLOCK Sets non-blocking I/O.
O_NOSIGPIPE
Return EPIPE instead of raising SIGPIPE.
RETURN VALUES
On successful creation of the pipe, zero is returned. Otherwise, a value of -1 is returned and the variable errno set to indicate the error.
ERRORS
The pipe() and pipe2() calls will fail if:
[EFAULT] The fildes buffer is in an invalid area of the process's address space. The reliable detection of this error cannot be
guaranteed; when not detected, a signal may be delivered to the process, indicating an address violation.
[EMFILE] Too many descriptors are active.
[ENFILE] The system file table is full.
pipe2() will also fail if:
[EINVAL] flags is other than O_NONBLOCK or O_CLOEXEC.
SEE ALSO sh(1), fork(2), read(2), socketpair(2), write(2)STANDARDS
The pipe() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'').
HISTORY
A pipe() function call appeared in Version 6 AT&T UNIX. The pipe2() function is inspired from Linux and appeared in NetBSD 6.0.
BSD January 23, 2012 BSD