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Full Discussion: Help to prepare script for monitor services
Top Forums UNIX for Beginners Questions & Answers Help to prepare script for monitor services Post 303045419 by yash_message on Friday 20th of March 2020 08:47:10 AM
Old 03-20-2020
Help to prepare script for monitor services
I need to monitor services in rhel 8
below are the service......
crond
chronyd
rsyslogd
sshd
sssd
firewalld

Scripts..........
Code:
#!/bin/bash
for i in "${SERVICES[@]}"
do
###CHECK SERVICE####
`pgrep $i `
STATS=(echo $?)

if [  $STATS == 0  ]
then
echo   "$i is running"
else
echo   "$i is not running"
fi
done

but after run script, output does not come. please help, where is the problem in scripts.

--- Post updated at 07:17 PM ---

I prepared another script. but getting error.

Code:
#!/bin/bash
for i in `cat SERVICES`
do
###CHECK SERVICE####
status=systemctl | grep running |grep $i |awk '{print $4}'
if [ $status -eq running ]
then
     echo "$i is running"
else
     echo "$i is not running"
fi
done

Output-

[root@localhost ~]# sh service1.sh
service1.sh: line 6: [: -eq: unary operator expected
crond is not running
service1.sh: line 6: [: -eq: unary operator expected
chronyd is not running
service1.sh: line 6: [: -eq: unary operator expected
rsyslogd is not running
service1.sh: line 6: [: -eq: unary operator expected
sshd is not running
service1.sh: line 6: [: -eq: unary operator expected
sssd is not running
service1.sh: line 6: [: -eq: unary operator expected
firewalld is not running


Why it is coming error.
 

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LEARN ABOUT CENTOS

kvno

KVNO(1) 							   MIT Kerberos 							   KVNO(1)

NAME

       kvno - print key version numbers of Kerberos principals

SYNOPSIS

       kvno [-c ccache] [-e etype] [-q] [-h] [-P] [-S sname] [-U for_user] service1 service2 ...

DESCRIPTION

       kvno acquires a service ticket for the specified Kerberos principals and prints out the key version numbers of each.

OPTIONS

       -c ccache
	      Specifies the name of a credentials cache to use (if not the default)

       -e etype
	      Specifies  the enctype which will be requested for the session key of all the services named on the command line.  This is useful in
	      certain backward compatibility situations.

       -q     Suppress printing output when successful.  If a service ticket cannot be obtained, an error message will still be printed  and  kvno
	      will exit with nonzero status.

       -h     Prints a usage statement and exits.

       -P     Specifies  that  the  service1  service2 ...  arguments are to be treated as services for which credentials should be acquired using
	      constrained delegation.  This option is only valid when used in conjunction with protocol transition.

       -S sname
	      Specifies that the service1 service2 ... arguments are interpreted as hostnames, and the service principals are  to  be  constructed
	      from  those hostnames and the service name sname.  The service hostnames will be canonicalized according to the usual rules for con-
	      structing service principals.

       -U for_user
	      Specifies that protocol transition (S4U2Self) is to be used to acquire a ticket on behalf of for_user.  If constrained delegation is
	      not requested, the service name must match the credentials cache client principal.

ENVIRONMENT

       kvno uses the following environment variable:

       KRB5CCNAME
	      Location of the credentials (ticket) cache.

FILES

       FILE:/tmp/krb5cc_%{uid}
	      Default location of the credentials cache

SEE ALSO

       kinit(1), kdestroy(1)

AUTHOR

       MIT

COPYRIGHT

       1985-2013, MIT

1.11.3																	   KVNO(1)
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