Guys,
I've a problem in the "sed" command used in my shellscripts
This is the problamatic line in my shell script:
sed -e 's/${line1}/${line1_m}/g' prod_hier_1234.txt > test.txt
It doesn't do the job of replacing the string stored in variable 'line1' to 'line1_m'.
However If I replace the... (10 Replies)
I have a current code working(named subst1) having a user be able to type this line to substitute words using the sed command:
subst1 old-pattern new-pattern filename
Here is my shell script:
#!/bin/bash
# subst1
ARGS=3
E_BADARGS=65
if
then
echo "Usage: `basename $0`... (1 Reply)
Hello,
I have the following line in one of my shell scripts. It works fine when the search string($SERACH_STR) exists in the logfile($ALERTLOG) but if the search string does not exist this line errors out at run time. Is there a way to make this line return 0 if it is not able to find the... (4 Replies)
Hi All,
I am not much strong in shell scripting...
I am using sed command in my script to find and replace a string.......
This is how script looks :
#############
#!/usr/bin/ksh
CONFIG_FILE=iom_test.txt
FIND=`echo "NIS_FTP_SERVER1=123.456.iom.com"`
REPLACE=`echo... (2 Replies)
First off I have read the man pages for sed and am still having trouble working on a script to remove portions of a log:
My goal is to take a log file to be emailed, read the file and strip the portions away AFTER the line MIME-Version:1.0
and strip away until it to the line starting with... (4 Replies)
Hi All,
I am trying to use a sed command in a shell script in order to delete some lines in a file and I got the following error message.
I don't understand why it is not working 'cause I have tried with simple quotes, then with double-quotes, and it is not working.
sed: -e expression #1,... (7 Replies)
hi guys,
The following command doesn't seem to work in my shell script:
tag=$(sed -n '/${line}/ s/.*\.*/\1/p' myfile.txt)
When i replace the ${line} with an actual value, it works fine.
So, how do i use the ${line} in this sed command?
Thanks in advance,
Zaff (2 Replies)
I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist.
diff=$1$2.diff
id=$2 new=new_$diff
echo "My id is $1"
echo "I want to sync for user account $id"
##awk command I am using is as below
cat $diff | awk... (2 Replies)
I am using a shell script in fedora linux. While calling to the shell I am also passing an argument (var1=0.77) like shown below
sh gossip.sh var1=0.77
in the shell following command is written (which doesn't work)
sed - i -e 's@prob=@prob="$var1";//@g' file.txt
Actually i want the... (7 Replies)
I have a simple task to replace unix line feed end of line characters with carriage returns.
When I run the following “change file in place” sed instruction from the command line all the Line feeds are successfully replaced with Carriage returns.
sed -i 's/$/\r/' lf_file.txt
But that same... (1 Reply)
Discussion started by: hawkman2k
1 Replies
LEARN ABOUT PHP
insq
insq(9F) Kernel Functions for Drivers insq(9F)NAME
insq - insert a message into a queue
SYNOPSIS
#include <sys/stream.h>
int insq(queue_t *q, mblk_t *emp, mblk_t *nmp);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
q Pointer to the queue containing message emp.
emp Enqueued message before which the new message is to be inserted. mblk_t is an instance of the msgb(9S) structure.
nmp Message to be inserted.
DESCRIPTION
insq() inserts a message into a queue. The message to be inserted, nmp, is placed in q immediately before the message emp. If emp is NULL,
the new message is placed at the end of the queue. The queue class of the new message is ignored. All flow control parameters are updated.
The service procedure is enabled unless QNOENB is set.
RETURN VALUES
insq() returns 1 on success, and 0 on failure.
CONTEXT
insq() can be called from user or interrupt context.
EXAMPLES
This routine illustrates the steps a transport provider may take to place expedited data ahead of normal data on a queue (assume all M_DATA
messages are converted into M_PROTO T_DATA_REQ messages). Normal T_DATA_REQ messages are just placed on the end of the queue (line 16).
However, expedited T_EXDATA_REQ messages are inserted before any normal messages already on the queue (line 25). If there are no normal
messages on the queue, bp will be NULL and we fall out of the for loop (line 21). insq acts like putq(9F) in this case.
1 #include
2 #include
3
4 static int
5 xxxwput(queue_t *q, mblk_t *mp)
6 {
7 union T_primitives *tp;
8 mblk_t *bp;
9 union T_primitives *ntp;
10
11 switch (mp->b_datap->db_type) {
12 case M_PROTO:
13 tp = (union T_primitives *)mp->b_rptr;
14 switch (tp->type) {
15 case T_DATA_REQ:
16 putq(q, mp);
17 break;
18
19 case T_EXDATA_REQ:
20 /* Insert code here to protect queue and message block */
21 for (bp = q->q_first; bp; bp = bp->b_next) {
22 if (bp->b_datap->db_type == M_PROTO) {
23 ntp = (union T_primitives *)bp->b_rptr;
24 if (ntp->type != T_EXDATA_REQ)
25 break;
26 }
27 }
28 (void)insq(q, bp, mp);
29 /* End of region that must be protected */
30 break;
. . .
31 }
32 }
33 }
When using insq(), you must ensure that the queue and the message block is not modified by another thread at the same time. You can achieve
this either by using STREAMS functions or by implementing your own locking.
SEE ALSO putq(9F), rmvq(9F), msgb(9S)
Writing Device Drivers
STREAMS Programming Guide
WARNINGS
If emp is non-NULL, it must point to a message on q or a system panic could result.
SunOS 5.10 9 Jul 2001 insq(9F)
02-23-2009
