output string message to pipe Post: 302085429

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to pipe output of here-document!!

anybody can help, plz: I want to pass the output of "ls" to "grep": ftp -n host <<! USER user passwd ls bye ! | grep file exit 0 It does not work!! Any idea?? Sami

2. UNIX for Dummies Questions & Answers

pipe output to two files

I am using grep and I want the output to go into two files without going to the screen. I used tee to get the output into two files, but it is also putting the output on the screen which i do not want. Can this be fixed.

3. Shell Programming and Scripting

pipe report output to another server

I have access to an AIX 5.3 box, where I need to write a report to: /tmp/report The report is larger then the amount of available disk space on the box. There's about 1 GB of free space, for a 1.5 GB report. The report is destined for another box (10.0.0.2) anyway, which has enough free...

4. UNIX for Dummies Questions & Answers

is there any way of using rm command on output of pipe

Hi, I am having a list of directories with different login id's. My requirement is that i need to list the directories of my id and need to delete them. So i am using following code ls -ltr � grep userid � rm -rf But this is not working. So is there any way of doing it. Please note...

5. UNIX for Dummies Questions & Answers

pipe > output

I can use pipe output to a file. For example ./somescript.sh > output.txt But for example if the output from ./somescript.sh is slow. like if it prints one line every minute then output.txt is not updated every minute. Lines are written to output.txt in one go, hence have to wait for the whole...

6. UNIX for Dummies Questions & Answers

Using multiple pipe output

I have a script that finds all sffs and extracts them into .fastq file types. What I need to do is change the .fastq to .fasta using the below script. How can I change the input.fastq and output.fasta to mirror the file's name? Would I use an array and use the default iterator? #!/bin/bash ...

7. Shell Programming and Scripting

Pipe delimited output

Hi All, i have the following command df|awk '{print $5}'|grep /| egrep -v '^/$|/usr|/opt|/var/log|/home|/tmp' output looks like: /filesystem/number1 /filesystem/number2 /filesystem3 /possiblymoreoutput i want the output to look like the below (either in a file or to output to...

8. Shell Programming and Scripting

Pipe output missing date?

I'd like to have the output from this script piped to a text file that has the date at the beginning of it. For example, my ideal would be something like this $./run_script.sh $ls *.out 2013-Feb-26-output_filename.out Here's the code I'm using. #! /bin/ksh DAT=`date '+%Y-%b-%d'` for...

9. Shell Programming and Scripting

Coulering pipe output

I'm trying to get an output to echo on the next line in a given color and outputted next to a label. Sorry if that's a bit vague, see below. #!/bin/bash YELLOW=$(tput setaf 3 && tput bold) echo -n 'plaintext' | openssl md2 || read hash echo "$YELLOW Hash:$hash" But I can't seem to get the...

10. Shell Programming and Scripting

Grep:pipe delimited output

Hi, I am trying to search for a string in a file and print all the matched lines as pipe delimited format. My command is cat m_gid_trans.XML|grep -i '<TABLEATTRIBUTE NAME ="Lookup cache directory name"' The output I am getting is <TABLEATTRIBUTE NAME ="Lookup cache directory name"...

LEARN ABOUT CENTOS

struct_pipe_inode_info

STRUCT 
PIPE_INODE_IN(9) 					     pipes API						   STRUCT PIPE_INODE_IN(9)

NAME

       struct_pipe_inode_info - a linux kernel pipe

SYNOPSIS

       struct pipe_inode_info {
	 struct mutex mutex;
	 wait_queue_head_t wait;
	 unsigned int nrbufs;
	 unsigned int curbuf;
	 unsigned int buffers;
	 unsigned int readers;
	 unsigned int writers;
	 unsigned int files;
	 unsigned int waiting_writers;
	 unsigned int r_counter;
	 unsigned int w_counter;
	 struct page * tmp_page;
	 struct fasync_struct * fasync_readers;
	 struct fasync_struct * fasync_writers;
	 struct pipe_buffer * bufs;
       };

MEMBERS

       mutex
	   mutex protecting the whole thing

       wait
	   reader/writer wait point in case of empty/full pipe

       nrbufs
	   the number of non-empty pipe buffers in this pipe

       curbuf
	   the current pipe buffer entry

       buffers
	   total number of buffers (should be a power of 2)

       readers
	   number of current readers of this pipe

       writers
	   number of current writers of this pipe

       files
	   number of struct file refering this pipe (protected by ->i_lock)

       waiting_writers
	   number of writers blocked waiting for room

       r_counter
	   reader counter

       w_counter
	   writer counter

       tmp_page
	   cached released page

       fasync_readers
	   reader side fasync

       fasync_writers
	   writer side fasync

       bufs
	   the circular array of pipe buffers

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   STRUCT PIPE_INODE_IN(9)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to pipe output of here-document!!

Discussion started by: sami98

2. UNIX for Dummies Questions & Answers

pipe output to two files

Discussion started by: NobluesFDT

3. Shell Programming and Scripting

pipe report output to another server

Discussion started by: mirx

4. UNIX for Dummies Questions & Answers

is there any way of using rm command on output of pipe

Discussion started by: sarbjit