Hi Everyone,
I stored the result of a certain awk script in the variable arr.The result is /inets /banking /tools.
arr= /inets /banking /tools
These are 3 direcctories. I should be able to move in to these directories using "cd" command.Can you tell me how to extract... (5 Replies)
I have a string stored in a variable. For instance,
$str = " Opcode called is : CM_OP_xxx "
where xxx changes dynamically and can be either LOGIN or SEARCH..... depends on runtime.
For example :
$str = " Opcode called is : CM_OP_SEARCH "
$str = " Opcode called is : CM_OP_LOGIN "
I... (3 Replies)
Hi,
I'm trying to extract the middle of an array that is of
variable length but always has a first and last common
element,
The following works OK...
#!/bin/bash
ARRAY='switch'
ARRAY='option1'
ARRAY='option2'
ARRAY='option3'
ARRAY='value'
SWITCH=${ARRAY:0:1}
VALUE=${ARRAY:(-1)}... (1 Reply)
I have the following input:
xxxx-2.7.19_WR3
I have extract the following:
2.7.19
Can anyone suggest an awk or sed command to do the above...:confused:
another condition is
if the input is :
xxx-xxx_xxx-1.4-1_WR3.0bg.armv6jel_vfp
it shud still extract : 1.4-1
whenever "-"... (12 Replies)
Hi,
echo "Enter file name of input file list along with absolute path : "
read inputFileList
if
then
for string in `cat inputFileList`
do
echo $string
done
else
echo " file does not exist"
fi
From the above code, if the user enters a invalid file... (1 Reply)
I have code that accepts input from a user, and when the user hits enter it is supposed to delete that whole line from the file.
echo "Which record? "
read record
sed '/$record/d' file
However, it does not delete it. Any help? (1 Reply)
Hi
I have one thing I need advice on, and I don't know where to start so I have no sample code.
I want the user to provide input like: 1-3,6,7,9-11
When the input is like this, I want a string to be generated including all the numbers. In the example above, the string would look like:
1... (13 Replies)
Good Evening. I'm new to C. Can you please help me.
I'm creating an error checking function, user will input a string, this will check if the input is all alphabet or all letters only. If there is a digit or other special char, it will print Error then ask input from user again.
Here's my... (1 Reply)
I am trying to extract a time from the below string in perl but not able to get the time properly
I just want to extract the time from the above line I am using the below syntax
x=~ /(.*) (\d+)\:(\d+)\:(\d+),(.*)\.com/
$time = $2 . ':' . $3 . ':' . $4;
print $time
Can... (1 Reply)
i am having file like this
#!/bin/bash
read -p 'Username: ' uservar
match='<color="red" />'
text='this is only a test
so please be patient
<color="red" />'
echo "$text" | sed "s/$match/&$uservar\g"
so desireble output what i want is if user type MARIA
this is only a test
so please... (13 Replies)
Discussion started by: tomislav91
13 Replies
LEARN ABOUT BSD
putctl
putctl(9F) Kernel Functions for Drivers putctl(9F)NAME
putctl - send a control message to a queue
SYNOPSIS
#include <sys/stream.h>
int putctl(queue_t *q, int type);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
q Queue to which the message is to be sent.
type Message type (must be control, not data type).
DESCRIPTION
putctl() tests the type argument to make sure a data type has not been specified, and then attempts to allocate a message block. putctl()
fails if type is M_DATA, M_PROTO, or M_PCPROTO, or if a message block cannot be allocated. If successful, putctl() calls the put(9E)
routine of the queue pointed to by q with the newly allocated and initialized messages.
RETURN VALUES
On success, 1 is returned. If type is a data type, or if a message block cannot be allocated, 0 is returned.
CONTEXT
putctl() can be called from user or interrupt context.
EXAMPLES
Example 1: Using putctl()
The send_ctl() routine is used to pass control messages downstream. M_BREAK messages are handled with putctl() (line 11). putctl1(9F)
(line 16) is used for M_DELAY messages, so that parm can be used to specify the length of the delay. In either case, if a message block
cannot be allocated a variable recording the number of allocation failures
is incremented (lines 12, 17). If an invalid message type is detected, cmn_err(9F) panics the system (line 21).
1 void
2 send_ctl(wrq, type, parm)
3 queue_t *wrq;
4 uchar_t type;
5 uchar_t parm;
6 {
7 extern int num_alloc_fail;
8
9 switch (type) {
10 case M_BREAK:
11 if (!putctl(wrq->q_next, M_BREAK))
12 num_alloc_fail++;
13 break;
14
15 case M_DELAY:
16 if (!putctl1(wrq->q_next, M_DELAY, parm))
17 num_alloc_fail++;
18 break;
19
20 default:
21 cmn_err(CE_PANIC, "send_ctl: bad message type passed");
22 break;
23 }
24 }
SEE ALSO put(9E), cmn_err(9F), datamsg(9F), putctl1(9F), putnextctl(9F)
Writing Device Drivers
STREAMS Programming Guide
SunOS 5.10 11 Apr 1991 putctl(9F)