Exit to while read Post: 303007101

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Top Forums Shell Programming and Scripting Exit to while read Post 303007101 by lxdorney on Saturday 11th of November 2017 01:01:52 PM

11-11-2017

Registered User

hi Scott,
here my script

Code:

func_monitoring () {
tail -fn0 /tmp/test.log | \
while read line ; do
        echo "$line" | grep -q "pattern1"
        echo "$line" | grep -q "pattern2"
    if [ "$line" == "pattern1" ]
        then
                echo "patter1"
                break
    elif [ "$line" == "pattern2" ]
        then
                echo "patter2"
                break
    fi
done
}

func_menu () {

while :
  do
clear
  echo ""
  echo ""
  echo "               [1] Monitor the log"
  echo ""
  echo "               [2] Exit"
  echo ""
  echo ""
  echo "        Select Number"
  echo ""
  echo -n "        Please Select [1-2]: "
  read yourch
  case $yourch in
   1)  func_monitoring ; read -n 1;;
   2)  clear ; exit 0
       ;;
    *) echo "       Please select choice 1 or 2"
       read -n 1
       ;;
  esac
done
}
func_menu

---------- Post updated at 11:52 AM ---------- Previous update was at 11:51 AM ----------

after found any pattern must be go back to the menu after 5s but is not happening

---------- Post updated at 11:56 AM ---------- Previous update was at 11:52 AM ----------

here's the scripts goes:
screen 1
1. sh test.sh

Code:


               [1] Monitor the log

               [2] Exit


        Select Number

        Please Select [1-2]: 1

from screen 2
will execute this:
echo 'pattern1' >> /tmp/test.log

result
screen 1:

Code:


               [1] Monitor the log

               [2] Exit


        Select Number

        Please Select [1-2]: 1
patter1

is not go back to menu after echo the pattern, i need to go back to the main menu

---------- Post updated at 11:59 AM ---------- Previous update was at 11:56 AM ----------

---------- Post updated at 01:01 PM ---------- Previous update was at 11:59 AM ----------

Thanks scott,

Solved it by adding this:

Code:

		echo "        Please [Enter] key to continue..."
		ps aux |grep tail -m 1 |awk '{print "kill " $2}' |sh
                break

Last edited by lxdorney; 11-11-2017 at 01:59 PM..

lxdorney

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escape(1)							Mail Avenger 0.8.3							 escape(1)

NAME

       escape - escape shell special characters in a string

SYNOPSIS

       escape string

DESCRIPTION

       escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.

EXAMPLES

       The following is a contrived example showing how one can unintentionally end up executing the contents of a string:

	   $ var='; echo gotcha!'
	   $ eval echo hi $var
	   hi
	   gotcha!
	   $

       Using escape, one can avoid executing the contents of $var:

	   $ eval echo hi `escape "$var"`
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	   $

       A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables.  For
       example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:

	   #!/bin/sh
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	       | fgrep "$1" > /dev/null 
		   && exit 0
	   echo "<$1>.. address does not accept blind carbon copies"
	   exit 100

       To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
       script:

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SEE ALSO

       avenger(1),

       The Mail Avenger home page: <http://www.mailavenger.org/>.

BUGS

       escape is designed for the Bourne shell, which is what Mail Avenger scripts use.  escape might or might not work with other shells.

AUTHOR

       David Mazieres

Mail Avenger 0.8.3						    2012-04-05								 escape(1)

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