I have a bunch of files named publish.php within subdirs. I need to append a line at the end of each file. I thought I could do it with find and echo like this:
find . -name publish.php -exec echo "<? include('path/to/file.php'); ?>" >> '{}' \;
but that appends the line to a file named {}... (2 Replies)
I have file called xx
Now i want to rename this file as xxYYYYMMDD_HHMIAM.xls
Here is my code..
export DATE1=`date +%Y%m%d`
mv xx xx$DATE1
This code renames as xxYYYYMMDD
Now how can i append HHMIAM at the end of the file?
Any help is appreciated... (3 Replies)
Hello, I wanted to append 'XYZ' at the end of the text file. How can i do this?
I searched the forums and i am not getting what i want. Any help is highly appreciated. Thanks (2 Replies)
Hi,
I have a directory with around 100k files and files with varying sizes(10GB files to as low as 5KB). All the files are having pipe dilimited records.
I need to append 7 pipes to the end of each record, in each file whose name contains _X3_ and need to append 10 pipes to the end of each... (3 Replies)
Hi Experts,
Am relatively new to shell programming so would appreciate some help in this regard.
I am looking at reading from a file, line by line, picking the first word of each line and appending it to the end of the line.
Any suggestions?
INPUT FILE -
3735051 :... (7 Replies)
I have searched the forms and I can not find info on appending each line of one file to the same line of another file. I know that I can cat one file to another or append the 2nd file to the end of the 1st but not quite sure how to append one line of data to another. For example
File 1 has ... (2 Replies)
hi,
i m having a group of files starting with name 'Itemdelete<timestamp>' .
my requirment is to append a blank line at the end of files ,using unix in all the Itemdelete* files with a single unix command without using scripts.can any body put some light to this requiremnt.
regards
Angel (4 Replies)
Hi,
My requirement is to append a date in format DDMMYYYYHHMISS at the end of first line of file which is HEADER. I am trying command
sed -i '1s/.*/&<date_format>/' <file_name>
Where <date_format>=`date +%m%d%Y%H%M%S`
I am somehow misisng the right quotes ti get this added in above... (2 Replies)
I need to append |\r\n (a pipe character and CRLF) at end of each record in Unix to all records where they are not already present.
So first check for the presence of |\r\n and if absent append it else do nothing (3 Replies)
Discussion started by: abhilashnair
3 Replies
LEARN ABOUT V7
pipe
PIPE(2) System Calls Manual PIPE(2)NAME
pipe - create an interprocess channel
SYNOPSIS
pipe(fildes)
int fildes[2];
DESCRIPTION
The pipe system call creates an I/O mechanism called a pipe. The file descriptors returned can be used in read and write operations. When
the pipe is written using the descriptor fildes[1] up to 4096 bytes of data are buffered before the writing process is suspended. A read
using the descriptor fildes[0] will pick up the data. Writes with a count of 4096 bytes or less are atomic; no other process can inter-
sperse data.
It is assumed that after the pipe has been set up, two (or more) cooperating processes (created by subsequent fork calls) will pass data
through the pipe with read and write calls.
The Shell has a syntax to set up a linear array of processes connected by pipes.
Read calls on an empty pipe (no buffered data) with only one end (all write file descriptors closed) returns an end-of-file.
SEE ALSO sh(1), read(2), write(2), fork(2)DIAGNOSTICS
The function value zero is returned if the pipe was created; -1 if too many files are already open. A signal is generated if a write on a
pipe with only one end is attempted.
BUGS
Should more than 4096 bytes be necessary in any pipe among a loop of processes, deadlock will occur.
ASSEMBLER
(pipe = 42.)
sys pipe
(read file descriptor in r0)
(write file descriptor in r1)
PIPE(2)
12-12-2014
