You are falling for "scripting error number 1": you depend on an environment, which cannot be taken for granted.
Long form: a construct like "./runapp.sh" is telling the shell to execute a program located in the CURRENT directory (the "./" part of the path). This might be the case if you are logged in as your user and manually changed to this directory before. This is NOT the case when cron tries to execute your script, because cron doesn't know that it should manually change into a certain directory first.
Avoid relative paths (everything starting with a "./" in scripts.
Additionally i wonder why the rest of the script worked at all. A command like "ps" is basically an executable and probably located in "/usr/bin/ps". Without a PATH variable pointing to /usr/bin ps shouldn't be found at all. This is also relying on an environment which is probably not set.
In scripts you better set ALWAYS your own environment, because this way you will never encounter problems like these. Here is a sketch of what i mean:
Another (minor) observation: if you use ksh do NOT use "echo" for output. There is the built-in "print" command for that, whereas "echo" is an external command.
Hello All.
I'm get the following messages posted to the /var/adm/syslog file ever second and not sure on how to stop the process.
May 14 15:50:52 a3360 bootpgw: version 2.3.5
May 14 15:50:52 a3360 inetd: /etc/bootpgw exit 0x1
As said about this gets logged every second only thing that... (4 Replies)
Hi,
Can anyone suggest a Unix command or c-shell algorithm to simulate to behavior of "wall" command minus the "all users"? What I'm trying to do is to send a notice to just one particular user but i dont want other remotely-logged-on users to receive the message (on the pseudo-terminals). I... (6 Replies)
heya,
can someone help me with following problem.
i am not sure how far you know the catalina.sh script from tomcat. when i start my tomcat with "catalina.sh run" then the startup-process-output will be printed out on the console, but the tomcat process is started in current shell/session, so... (1 Reply)
Does anyone know if this is possible?
I want to give some users access to root's crontab but only with a read privilege.
Is this possible to do or can only root or people with full root sudo view root's cron? (4 Replies)
hi,
I've read different posts regarding crontab but none helped out...the shell scrip that I want to run through crontab gets run through crontab when I use the following crontab statement:
13 17 * * * /usr/net/gcc/DBdrop.sh > /usr/net/gcc/DBdrop.log 2>&1
but it does not run when I scheduel... (2 Replies)
the script is in Perl... this is one part of it:
$command = "echo \"$text\" | /usr/bin/nail -s \"My $text1\" $ccstr$addstr";
system("$command") if length($bodytext)>1;
crontab runs the script and sends me notifications but i cant receive any mail that i wanted!
I'm using the complete path... (1 Reply)
I need a shell script using expect to login to couple of remote servers and read "crontab -l -u <username>" & "cat /etc/rc.local" & "df -h" and able to create output into a file saved locally with hostname.crontab & hostname.rc.local & disk.status. I can supply a file as list of hostname or IP... (4 Replies)
Please can you help me understand the significance of providing arguments under sh -s in
> ssh -qtt ${user}@${host} "sh -s "${version}"" < test.sh (4 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
I am looking t run root level command on multiple servers, but all servers have only "su - " permission available in sudoers.
please help me if any way that I can run command using help of "su -"
My script
for hosts in `cat hosts.txt`;
do
echo "###########################Server Name-... (5 Replies)
Discussion started by: yash_message
5 Replies
LEARN ABOUT CENTOS
service
service(8) System Manager's Manual service(8)NAME
service - run a System V init script
SYNOPSIS
service SCRIPT COMMAND [OPTIONS]
service --status-all
service --help | -h | --version
DESCRIPTION
service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working
directory set to /.
The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the
invoked script, service passes COMMAND and OPTIONS it to the init script unmodified. All scripts should support at least the start and
stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start
command.
service --status-all runs all init scripts, in alphabetical order, with the status command.
If the init script file does not exist, the script tries to use legacy actions. If there is no suitable legacy action found and COMMAND is
one of actions specified in LSB Core Specification, input is redirected to the systemctl. Otherwise the command fails with return code 2.
FILES
/etc/init.d
The directory containing System V init scripts.
ENVIRONMENT
LANG, TERM
The only environment variables passed to the init scripts.
SEE ALSO chkconfig(8), ntsysv(8), systemd(1), systemctl(8), systemd.service(5)
Jan 2006 service(8)