Using the watch command Post: 302991491

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Top Forums Shell Programming and Scripting Using the watch command Post 302991491 by SkySmart on Saturday 11th of February 2017 02:28:42 PM

02-11-2017

Registered User

Using the watch command

so i have a very long script which i have to run. when i run this script, i want to monitor the the openssl commands it runs.

the way ive attempted to do this is:

Code:

watch -t -n 1 "(date '+TIME:%H:%M:%S' ; ps aux | egrep openssl | egrep -v grep)" 2>&1 | tee -a logfile

the above command is suppose to run the watch command continuously looking for the word "openssl" in the process table.
when it finds any process that has the word, its suppose to copy the entire line from the process table containing the "openssl" command and then log it to a file called logfile.

however, this isnt working as expected. when i view the logfile all i see is a bunch of empty lines and blank spaces and these weird characters:

Code:

;80H^[[1;13H1^[[24;80H^[[1;13H2^[[24;80H^[[1;13H3^[[24;80H^[[1;13H4^[[24;80H^[[1;13H5^[[24;80H^[[1;13H6^[[24;80H^[[1;13H7^
[[24;80H^[[1;13H8^[[24;80H^[[1;13H9^[[24;80H^[[1;12H40^[[24;80H^[[1;13H1^[[24;80H^[[1;13H2^[[24;80H^[[1;13H3^[[24;80H^[[1;13H4^[[24;80H^
[[1;13H5^[[24;80H^[[1;13H6^[[24;80H^[[1;13H7^[[24;80H^[[1;13H8^[[24;80H^[[1;13H9^[[24;80H^[[1;12H50^[[24;80H^[[1;13H1^[[24;80H^[[1;13H2^[
[24;80H^[[1;13H3^[[24;80H^[[1;13H4^[[24;80H^[[1;13H5^[[24;80H^[[?1049h^[[1;24r^[(B^[[m^[[4l^[[?7h^[[H^[[2J^[[24;80H^[[?1049h^[[1;24r^[(B^[[m^[[4l^[[?7h^[[H^[[2J^[[24;80H

how can the watch command be fixed to do what i want?

SkySmart

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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)