i am new to linux programming. can anyone answer my question?
there is one pipe file "my_pipe"
prw-r--r-- 1 john rnd 32 Aug 17 19:45 my_pipe
how to output string message (char*) to this pipe? which API should I use? (3 Replies)
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 (7 Replies)
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. (2 Replies)
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... (3 Replies)
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... (2 Replies)
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
... (3 Replies)
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... (3 Replies)
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
$ls *.out
2013-Feb-26-output_filename.out
Here's the code I'm using.
#! /bin/ksh
DAT=`date '+%Y-%b-%d'`
for... (2 Replies)
I'm trying to get an output to echo on the next line in a given color and outputted next to a label.
Sorry if that's a bit vague, see below.
#!/bin/bash
YELLOW=$(tput setaf 3 && tput bold)
echo -n 'plaintext' | openssl md2 || read hash
echo "$YELLOW Hash:$hash"
But I can't seem to get the... (2 Replies)
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"... (4 Replies)
Discussion started by: sampoorna
4 Replies
LEARN ABOUT OPENSOLARIS
rmvb
rmvb(9F) Kernel Functions for Drivers rmvb(9F)NAME
rmvb - remove a message block from a message
SYNOPSIS
#include <sys/stream.h>
mblk_t *rmvb(mblk_t *mp, mblk_t *bp);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
mp Message from which a block is to be removed. mblk_t is an instance of the msgb(9S) structure.
bp Message block to be removed.
DESCRIPTION
The rmvb() function removes a message block (bp) from a message (mp), and returns a pointer to the altered message. The message block is
not freed, merely removed from the message. It is the module or driver's responsibility to free the message block.
RETURN VALUES
If successful, a pointer to the message (minus the removed block) is returned. The pointer is NULL if bp was the only block of the message
before rmvb() was called. If the designated message block (bp) does not exist, -1 is returned.
CONTEXT
The rmvb() function can be called from user, interrupt, or kernel context.
EXAMPLES
This routine removes all zero-length M_DATA message blocks from the given message. For each message block in the message, save the next
message block (line 10). If the current message block is of type M_DATA and has no data in its buffer (line 11), then remove it from the
message (line 12) and free it (line 13). In either case, continue with the next message block in the message (line 16).
1 void
2 xxclean(mp)
3 mblk_t *mp;
4 {
5 mblk_t *tmp;
6 mblk_t *nmp;
7
8 tmp = mp;
9 while (tmp) {
10 nmp = tmp->b_cont;
11 if ((tmp->b_datap->db_type == M_DATA) &&
(tmp->b_rptr == tmp->b_wptr)) {
12 (void) rmvb(mp, tmp);
13 freeb(tmp);
14 }
15 tmp = nmp;
16 }
17 }
SEE ALSO freeb(9F), msgb(9S)
Writing Device Drivers
STREAMS Programming Guide
SunOS 5.11 16 Jan 2006 rmvb(9F)