Apache Web Servers

root:/www> apachectl -k start
httpd: illegal option -- k

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$ cat ./29176311.sh
#!/bin/bash
export PS4='$0 $LINENO: '
LOGNAME=$(id -nu)
if [ "Linux" = "$(uname -s)" ]
then
	if [ "root" = "$LOGNAME" ]
	then
		# Version 0001.0001
		# If apachectl not installed, install it => yum -y install httpd

		# /usr/sbin/apachectl is a shell script executable file
		# This file assigning the variable HTTPD='/usr/sbin/httpd'

		# $ /usr/bin/file /usr/sbin/apachectl
		# /usr/sbin/apachectl: Bourne shell script text executable

		# /usr/sbin/httpd is an executable

		# $ /usr/bin/file /usr/sbin/httpd
		# /usr/sbin/httpd: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.9, stripped

		if [ ! -f /usr/sbin/apachectl ]
		then
			/usr/bin/yum -y install httpd
			Ret=$?
		else
			Ret=0
		fi
		# If installed or /usr/sbin/apachectl is available, execute following statements
		if [ 0 -eq $Ret ]
		then
			# Before starting httpd
			# Check if a line starting with "^ServerName IPAddress" at /etc/httpd/conf/httpd.conf
			grep -E "^ServerName" /etc/httpd/conf/httpd.conf >/dev/null 2>&1
			if [ 0 -ne $? ]
			then
				grep -E "^#ServerName" /etc/httpd/conf/httpd.conf >/dev/null 2>&1
				if [ 0 -eq $? ]
				then
					# If a line starting with #ServerName followed by 1 or more characters => #ServerName.*
					# Replace #ServerName.* => \1 => first occurence of that line
					# With:
					# \1 new line
					# ServerName IPAddress:80
					# in same file /etc/httpd/conf/httpd.conf
					# You can change port number to required port 420 :)
					# Before assigning that port number
					# Validate that port number not in use before assigning that number.
					sed -i "s/\(^#ServerName.*\)/\1\nServerName $(hostname -i):80/;" /etc/httpd/conf/httpd.conf | grep ServerName
				else
					# If not present write following line at /etc/httpd/conf/httpd.conf
					echo "ServerName $(hostname -i)" >> /etc/httpd/conf/httpd.conf
					# Because of this change following error will not happen when we start httpd
					# httpd: Could not reliably determine the server's fully qualified domain name, using 123.456.78.910 for ServerName
				fi
			fi
			# Before strarting httpd validate if it is already at execution mode
			ps -eaf |\
			grep httpd |\
			grep -E -v "grep|ps"
			if [ 0 -ne $? ]
			then
				echo /usr/sbin/apachectl start
				/usr/sbin/apachectl start
				if [ 0 -eq $? ]
				then
					netstat -na | grep ":80"
					echo "httpd start PASS"
				else
					echo "httpd start FAIL"
				fi
			else
				echo -n "you can remove # at following lines to stop httpd." >/dev/null
				#echo "Stopping httpd"
				#echo /usr/sbin/apachectl stop
				#/usr/sbin/apachectl stop
			fi
		else
			echo "Execute this script using root user or using sudo"
		fi
	else
		echo "Update this script to execute at other OS: $(uname -s | sed "s/\-[0-9]\.[0-9]$//;")"
	fi
fi

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murugesandins@123.456.78.910 /home/murugesandins [ 0 ]
$ ./29176311.sh
Execute this script using root user or using sudo
murugesandins@123.456.78.910 /home/murugesandins [ 0 ]
$ sudo ./29176311.sh
/usr/sbin/apachectl start
tcp        0      0 :::80                       :::*                        LISTEN
httpd start PASS
murugesandins@123.456.78.910 /home/murugesandins [ 0 ]
$ sudo ./29176311.sh
root      6663     1  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6664  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6665  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6666  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6667  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6668  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6669  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6670  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start
apache    6671  6663  0 08:40 ?        00:00:00 /usr/sbin/httpd -k start

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$ ./29176311.sh
Update this script to execute at other OS: CYGWIN_NT
$ file /cygdrive/c/Windows/System32/notepad.exe
/cygdrive/c/Windows/System32/notepad.exe: PE32+ executable (GUI) x86-64, for MS Windows
$ file /bin/ls
/bin/ls: PE32+ executable (console) x86-64, for MS Windows

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$ /usr/sbin/apachectl
Usage: /usr/sbin/httpd [-D name] [-d directory] [-f file]
                       [-C "directive"] [-c "directive"]
                       [-k start|restart|graceful|graceful-stop|stop]
                       [-v] [-V] [-h] [-l] [-L] [-t] [-S]
Options:
  -D name            : define a name for use in <IfDefine name> directives
  -d directory       : specify an alternate initial ServerRoot
  -f file            : specify an alternate ServerConfigFile
  -C "directive"     : process directive before reading config files
  -c "directive"     : process directive after reading config files
  -e level           : show startup errors of level (see LogLevel)
  -E file            : log startup errors to file
  -v                 : show version number
  -V                 : show compile settings
  -h                 : list available command line options (this page)
  -l                 : list compiled in modules
  -L                 : list available configuration directives
  -t -D DUMP_VHOSTS  : show parsed settings (currently only vhost settings)
  -S                 : a synonym for -t -D DUMP_VHOSTS
  -t -D DUMP_MODULES : show all loaded modules
  -M                 : a synonym for -t -D DUMP_MODULES
  -t                 : run syntax check for config files
$ man apachectl
$ man httpd

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