practice

Author: RohitRawat891997

a1.sh

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+#!/bin/bash
+for i in 1 2 3 4 5
+do
+ echo "$i"
+done

a2.sh

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+#!/bin/bash
+for i in 1 2 3 4 5
+do
+ {
+	 echo -e  "\033[32m Hello$i \033[0m"
+}
+done
+

abc

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+facebook.com
+instagram.com
+172.31.0.28
+192.168.1.1
+192.168.1.2
+192.168.1.13

diskscript.sh

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+#!/bin/bash
+disk=`df -kh | sed -n  '5p' | awk '{print $5}' | cut -d% -f 1`
+if [ $disk -ge 35 ]
+then
+	echo "disk is in critical face!" | mail -s "check disk space" root@localhost
+else 
+	echo "OKAY"
+fi

even.sh

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+#!/bin/bash
+for i  in  {1..20..2}
+do
+	echo "even numbers are = $i"
+done

example-1.sh

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+#!/bin/bash
+read -p "which IP you want to ping : " a
+ping -c1 $a >> /dev/null
+if [ $? = 0 ]
+then 
+	echo "$a IP is up"
+else 
+	echo "$a IP is down"
+fi

example-2.sh

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+#!/bin/bash
+for i in {1..10..1}
+do
+echo "It is $i/10 ."
+done

example-3.sh

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+#!/bin/bash
+read -p  "enter a file name : " i
+xyz=`cat $i | wc -l`
+file () {
+echo The file $i has $xyz lines in it.
+}
+file

memcache.sh

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+#!/bin/bash
+a=`free -h | grep -i  mem | awk '{print $4}'`
+b=`free -h | grep -i  mem | awk '{print $7}'`
+echo "free space is = $a and available is = $b !"

ping.sh

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+#!/bin/bash
+x=`cat abc`
+for i in $x
+do
+ping -c2 $i  >> /dev/null
+if [ $? = 0 ]
+then
+	echo "$i is up"
+else
+	echo "$i is down"
+fi
+done