Shulou(Shulou.com)06/02 Report--

[root@master1-192,168117-18 ~] # vim mkcdrom.sh

#! / bin/bash

DIR= "/ media/cdrom"

If [!-e $DIR]

Then

Mkdir-p $DIR

Fi

[root@master1-192,168117-18 ~] # vim chkhost.sh

#! / bin/bash

Ping-c 3-I 0.2-W 3 $1 & > / dev/null

If [$?-eq 0]

Then

Echo "Host $1 is on-line"

Else

Echo "Host $1 is off-line"

Fi

[root@master1-192,168,117-18] # bash chkhost.sh 192.168.1.11

Host 192.168.1.11 is on-line

Note: the-c parameter specifies the number of attempts, uses the-I parameter to define the interval between each packet, and uses the-W parameter to define the wait timeout

[root@master1-192,168117-18 ~] # vim chkscore.sh

#! / bin/bash

Read-p "Enter your score (0100):" GRADE

If [$GRADE-gt 100]

Then

Echo "$GRADE is Error"

Elif [$GRADE-ge 85] & & [$GRADE-le 100]

Then

Echo "$GRADE is Excellent"

Elif [$GRADE-ge 70] & & [$GRADE-le 84]

Then

Echo "$GRADE is Pass"

Else

Echo "$GRADE is Fail"

Fi

[root@master1-192,168117-18 ~] # bash chkscore.sh

Enter your score (0-100):

200 is Error

[root@master1-192,168117-18 ~] # bash chkscore.sh

Enter your score (0100): 93

93 is Excellent

[root@master1-192,168117-18 ~] # bash chkscore.sh

Enter your score (0-100): 80

80 is Pass

[root@master1-192,168117-18 ~] # bash chkscore.sh

Enter your score (0100): 23

23 is Fail

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