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most likely this is due to expiry or locking of account. Check the bellow link and give a try .

CRON: bad user - Sun Solaris (http://www.justskins.com/forums/cron-bad-user-149310.html)

You need to clear your fundamentals in UNIX first . I will suggent you study the PATH variable (what, why and how to set ) . The path is like where you search your exe or commands. You can check in...

you have not set your path . normaly it should be in /usr/sbin dir.

Either u add that to your pathelse u can give the full path to execute


/usr/sbin/ping x.x.x.x

Is there any external file system mounted on your machine ? If so may be one of the remote files system is taking time to respond.

whats the out put of the df -kh

you need to take the logs for the cron job . Most likely its a env variable issue as cron does not set your env variables by default. You need to check the cronrun log file to find the details ....

vpath=`pwd`

use -w option for whole word search


grep -w 275 myfile.txt


check man page of grep for more details

yes you can use it . But you must know the basic of unix and scripting . Pls search the net and study some startup unix skill

First create a script to collect the details in a text file and send the content for file in mail.Then add that script to cron jobs using "crontab -e " command.

An example for cpu details is...

here is the basic logic . here you can get two variables $a and $b for every line. You can modify it as per your requirement


while read line
do
a=`echo $line |awk -F: '{print $1 }'`...

Although its not a 100% solution but its working .

Just add your mail server address in /etc/hosts


12.115.40.19 amit.com


then check you are able to connect to the mail sever...

Refer

Unix is a Four Letter Word: Unix ---&gt Wildcards (http://unix.t-a-y-l-o-r.com/USwild.html)

print "${L_STRING}" | sed y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/


or

bash-2.05b$ echo "amit" |tr "[:lower:]" "[:upper:]"
AMIT

No you are doing it wrong

create a file named sn
inside the file write
snmpget -c DreamTeam dal2-hr1 ifAlias.$1

give execute permission
chmod 755 sn

make sure that the file is created in...

i have another way.

create a script and put it in your path with execute permission

#cat sn
snmpget -c DreamTeam dal2-hr2 ifAlias.$1

so you can simply execute command to execute the snmp...

check this .
https://www.unix.com/shell-programming-scripting/17660-check-null-variable.html

if [ `ps -elf | grep batch_output_x | grep -cv grep` = 0 ]
then
echo 'Gateway output processing started.'
else
VAR=$(ps -ef | grep batch_output_x )...

fi


You are not...

Thre is no process running called red5 . You are getting the PID of grep.

check with
ps -aef | grep red5 | grep -v grep

echo "Header1 Header2 Header3 Header4" > newfile1
cat newfile >>newfile1
cp newfile1 newfile

for myuser in `cat /etc/passwd | cut -d ':' -f1`;
do
some work on the user in $myuser
done

./ means you are specifying the path (location) of script.

it means the shell will execute the script from the current pwd.

Its same if you give complete path like /home/amit/myscript.sh
else...

read -p "Enter userinput maually : " userinput

echo "\$__MR_CONFIG['system']['database']['database_Primary']['username'] = '$userinput';" > filename

Put the script in /etc/rc3.d directory and rename it as startup scripts already there in the directort

Say S99_startup.sh .when the machine will boot it will execute the script.

while read line
do

echo $line | grep $pattern >/dev/null



if [ $? -eq 0 ]
then
echo $line4

fi

line4=$line3
line3=$line2
line2=$line1
line1=$line
done < $filename

awk ' { print $3 } ' filename