I am new to unix shell scripting. I just want a little script to check the no. of processes are equal to 8, then echo a successful message otherwise echo a unsuccessful message. Please help.
Hi all,
I have a file of the following format -
EXPRPT:SCN:1.1706E+10:SEQ_START:121652:SEQ_END:121664:0
( This file name is variable and changes daily)
Now in the same directory I have another set of files of the format -
EXPRPT.log.0001.0000121669
Now what I am trying to do is to ... (2 Replies)
here is a small script:
if ; then
echo please enter an argument
fi
if [ "$1" = "tom"; then
a=$1
echo $a
fi
here is my question. if the script name is j.sh and I run it : j.sh from shell prompt: without a parameter: it prints please enter an argument but if I go with . j.sh (current... (1 Reply)
The following Script takes each extension and determine what category it
belongs and then moves it into a directory based on the extension.
(for eg. 1.sh, 5.sh, 9.sh together; 4.csh, 120.csh, 6.csh together and 7.ksh, 2.ksh, 59.ksh together) and moves them to their respective directories viz.... (2 Replies)
#!/bin/ksh
for i in *.log*
do
ls $i|sed 's/\.log$//g' | while read file
do
echo "file $file is Running" >> lls.txt
echo "***************">> lls.txt
done
done
------------------------------------------------------------------
the output is :
file AdapterCCProvisioningInterface... (9 Replies)
I need to write a small shell script which does the following :
I have a file : root/var/log/ocmp/ocmpclient.log
This is a log file which is continuosly getting updated . I have to keep looking into this file all the time. I have to look for four keywords, "File Detected", File Sending",... (2 Replies)
Hello all,
i have a batmail process running on my machine(java process).
i just need a script we should detect whether the batchnail is running or not.If not it should restart it.
Can anyone assist me on this? (1 Reply)
Hello all, could somebody help..?
I have following 6 files (with white spaces in their names)
This is file
This is file1
This is file2
This is file3
This is file4
This is file5
This is file6
I tried to run the below script, and it did not give me desired ouput..
$ for i in `ls -1`
>... (7 Replies)
Hi I have the below file
Name=abc
Yr=2011
Mon=05
My script should be in such a way that whenever I run it then
Month should increment by 1 and if the month is 12 then when
I run the script then year should incremented by 1 and month
Should become 01(I.e jan)
Thanks for the help in... (6 Replies)
Hi Guys,
I need to understand below scipt:-
-bash-3.00$ cat rsync-copy.ksh
#!/usr/5bin/ksh
batch <<%EOF%
echo "/usr/local/bin/rsync --rsync-path=/usr/local/bin/rsync -a --stats /usr/openv/ /OpenvBCK" > openv.LOG
# CG /usr/local/bin/rsync ... (6 Replies)
Discussion started by: manalisharmabe
6 Replies
LEARN ABOUT MINIX
init
INIT(8) System Manager's Manual INIT(8)NAME
init - grandparent of all processes
DESCRIPTION
The first program started by Minix is init. The actions performed by init can be summarized by this pseudo shell program:
# Open 0, 1, 2.
exec </dev/null >/dev/log 2>&1
# Run the system initialization script.
sh /etc/rc $bootopts
>/etc/utmp
echo reboot >>/usr/adm/wtmp
while :; do
# Wait for a process to exit, but don't always block.
wait
# Record logout. (Not in this dumb way, of course.)
if "pid is in my tables" $pid
then
echo "logout $pid" >/etc/utmp
echo "logout $pid" >>/usr/adm/wtmp
fi
# Start a new session.
while read line type getty init
do
if idle $line
then
$init ... <$tty >$tty
$getty <$tty >$tty 2>&1 &
pid=$!
"add pid to tables" $pid
echo "login $line $pid" >/etc/utmp
echo "login $line $pid" >>/usr/adm/wtmp
fi
done < /dev/ttytab
done
The first action of init is to run /etc/rc to initialize the system as described in boot(8). Init then enters its main loop where it waits
for processes to exit, and starts processes on each enabled terminal line. The file /etc/ttytab contains a list of terminal devices, their
terminal types, the program to execute on them to allow one to login (usually getty(8)), and the program to execute first to initialize the
line (usually stty(1)). These fields may be left out to indicate that a line is disabled or that initialization is not necessary. The
commands are searched using the path /sbin:/bin:/usr/sbin:/usr/bin.
Init accepts several signals that must be sent to process id 1. (It is the first process, so natually its process id is 1.) The signals
are:
SIGHUP When receiving a hangup signal, init will forget about errors and rescan ttytab for processes to execute. Init normally rescans
ttytab each time it feels the need to respawn a process, so the hangup signal is only needed if a line has been shut down, or after
a terminate signal. Note that after turning a line off you will have to kill the process running on that line manually, init
doesn't do that for you.
SIGTERM
Normally sent by programs that halt or reboot Minix. Causes init to stop spawning new processes.
SIGABRT
Sent by the keyboard driver when the CTRL-ALT-DEL key combination is typed. Causes init to run the shutdown command. A second
abort signal makes init halt the system directly with a system call. The keyboard driver halts the system, without a sync, after
the third CTRL-ALT-DEL.
Minix vs. Minix-vmd
There are a few differences between standard Minix and Minix-vmd on how init is run. The /etc/rc file is executed under standard Minix
with input connected to /dev/console, but under Minix-vmd this is still /dev/null. This means that under Minix-vmd processes must be
reconnected to /dev/console with the intr program if they need user interaction. Minix-vmd passes the value of the bootopts boot variable
to /etc/rc. Standard Minix does not.
FILES
/etc/ttytab List of terminals devices.
/etc/utmp List of currently logged in users.
/usr/adm/wtmp Login/logout history.
SEE ALSO ttytab(5), utmp(5), getty(8), stty(1), boot(8).
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
INIT(8)