Unix service --status-all / grep into an email - command not found.

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Linux

service

mail

cron

Evening

i am trying to automate a service status email from a select number of services. when i run the script with sh -x ./myscriptname.sh it works absolutely fine. But when installed as a cron, i get a constant error

service: command not found

The shell script is as follows:

#!/bin/sh
service --status-all | grep 'tomcat\|xcoder\|sshd\|xinetd' | mail -s "$(hostname) Daily Service Status Monitor"  -r "no-reply@no-company.com" -S smtp="x.x.x.x:25" my.email@address.co.uk

The mail i get is:

Content-Type: text/plain; charset=UTF-8
Auto-Submitted: auto-generated
X-Cron-Env: <LANG=en_US.UTF-8>
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
X-Cron-Env: <USER=root>
Date: Mon,  4 Dec 2017 19:32:01 +0000 (WET)
Status: R

/etc/cron.daily/myscriptname.sh: line 2: service: command not found
Null message body; hope that's ok

would appreciate it if anyone could shed some light on this.

What I have tried:

<pre lang="c#">
#!/bin/sh
output=$(service --status-all | grep 'tomcat\|xcoder\|sshd\|xinetd')
echo $output | mail -s "$(hostname) Daily Service Status Monitor"  -r "no-reply@no-company.com" -S smtp="x.x.x.x:25" my.email@address.co.uk