Write a script for generating a mark sheet after reading data from a file. File contains student roll no, name , marks of three subjects.
studInfo.txt
hitesh,30,70,80
mitesh,30,80,40
jitesh,30,35,40
ritesh,100,100,100
mitesh,30,80,40
jitesh,30,35,40
ritesh,100,100,100
Ex13.sh
clear
len=`cat studInfo.txt | wc -l`
i=1
echo "\n\n\t\t\t [ STUDENT MARKSHEET ]\n"
echo "__________________________________________________________________________"
echo "#\t NAME \t \t \t TOTAL \t \t PERCENTAGE \t GRADE "
echo "__________________________________________________________________________"
while [ $i -le $len ]
do
record=`head -n $i studInfo.txt | tail -n 1`
total=0
j=2
isFail=0
while [ $j -le 4 ]
do
marks=`echo $record | cut -d "," -f $j`
if [ $marks -lt 40 ]
then
isFail=1
fi
total=`expr $marks + $total`
j=`expr $j + 1`
done
name=`echo $record | cut -d "," -f 1`
per=`expr $total / 3`
if [ $isFail = 0 ]
then
if [ $per -ge 85 ] && [ $per -le 100 ]
then
grade="AA"
elif [ $per -ge 75 ] && [ $per -le 84 ]
then
grade="AB"
elif [ $per -ge 65 ] && [ $per -le 74 ]
then
grade="BB"
elif [ $per -ge 55 ] && [ $per -le 64 ]
then
grade="BC"
elif [ $per -ge 45 ] && [ $per -le 54 ]
then
grade="CC"
else
grade="FF"
fi
else
grade="FF"
fi
echo "$i \t $name \t \t $total \t \t $per % \t \t $grade"
i=`expr $i + 1`
done
echo "__________________________________________________________________________\n"
len=`cat studInfo.txt | wc -l`
i=1
echo "\n\n\t\t\t [ STUDENT MARKSHEET ]\n"
echo "__________________________________________________________________________"
echo "#\t NAME \t \t \t TOTAL \t \t PERCENTAGE \t GRADE "
echo "__________________________________________________________________________"
while [ $i -le $len ]
do
record=`head -n $i studInfo.txt | tail -n 1`
total=0
j=2
isFail=0
while [ $j -le 4 ]
do
marks=`echo $record | cut -d "," -f $j`
if [ $marks -lt 40 ]
then
isFail=1
fi
total=`expr $marks + $total`
j=`expr $j + 1`
done
name=`echo $record | cut -d "," -f 1`
per=`expr $total / 3`
if [ $isFail = 0 ]
then
if [ $per -ge 85 ] && [ $per -le 100 ]
then
grade="AA"
elif [ $per -ge 75 ] && [ $per -le 84 ]
then
grade="AB"
elif [ $per -ge 65 ] && [ $per -le 74 ]
then
grade="BB"
elif [ $per -ge 55 ] && [ $per -le 64 ]
then
grade="BC"
elif [ $per -ge 45 ] && [ $per -le 54 ]
then
grade="CC"
else
grade="FF"
fi
else
grade="FF"
fi
echo "$i \t $name \t \t $total \t \t $per % \t \t $grade"
i=`expr $i + 1`
done
echo "__________________________________________________________________________\n"
sort files in unix by size
#Write a script to display the directory in the descending order of the size of each file.
ls -lS
#Write a script to display the directory in the Ascending order of the size of each file.
ls -lSr
#option [ -l ] is use for log listing
#option [ -S ] to sort by size
#option [ -r ] use for revers ordering
ls -lS
#Write a script to display the directory in the Ascending order of the size of each file.
ls -lSr
#option [ -l ] is use for log listing
#option [ -S ] to sort by size
#option [ -r ] use for revers ordering
date command in unix
#Write a script to display the date, time and a welcome message (like Good Morning etc.). The time should be displayed with “a.m.” or “p.m.” and not in 24 hours notation.
currentHour=`date +%H`
currentTime=`date +"%I : %M : %S %p"`
if [ $currentHour -lt 12 ]
then
msg="Good Morning"
elif [ $currentHour -ge 12 ] && [ $currentHour -lt 16 ]
then
msg="Good Afternoon"
elif [ $currentHour -ge 16 ] && [ $currentHour -lt 21 ]
then
msg="Good Evening"
else
msg="Good Night"
fi
#format of time [ HH : MM : SS : AM/PM]
echo "$msg ,\nCurrent Time is $currentTime"
currentHour=`date +%H`
currentTime=`date +"%I : %M : %S %p"`
if [ $currentHour -lt 12 ]
then
msg="Good Morning"
elif [ $currentHour -ge 12 ] && [ $currentHour -lt 16 ]
then
msg="Good Afternoon"
elif [ $currentHour -ge 16 ] && [ $currentHour -lt 21 ]
then
msg="Good Evening"
else
msg="Good Night"
fi
#format of time [ HH : MM : SS : AM/PM]
echo "$msg ,\nCurrent Time is $currentTime"
Write a script to display the name of all executable files in the given directory.
clear
echo "Enter Directory Name : "
read dir
ls $dir>fileList.txt
count=0
if [ -d $dir ]
then
for fileName in `cat fileList.txt`
do
if [ -x $dir/$fileName ]
then
echo "$fileName"
count=`expr $count + 1`
fi
done
fi
echo "Total Executable Files : $count"
rm fileList.txt
Write a script to display the name of those files (in the given directory) which are having multiple links.
clear
echo "Enter Directory : "
read dir
# check inputed name is directory or not
if [ ! -d $dir ]
then
echo "DIRECTORY [ $dir1 ] NOT EXIST"
exit 1
fi
#count total number of lines
len=`ls -l $dir | wc -l`
i=2
echo "File With Multiple Link are "
while [ $i -le $len ]
do
# select one by one record from entire group of records
record=`ls -l $dir | head -n $i | tail -n 1`
#grab the file name
f=`echo $record | cut -d " " -f 8`
#grab the total hard link to that file
link=`echo $record | cut -d " " -f 2`
#if multiple links then print file with link
if [ $link -gt 1 ]
then
echo "$f = $link"
fi
#increment the counter
i=`expr $i + 1`
done
echo "Enter Directory : "
read dir
# check inputed name is directory or not
if [ ! -d $dir ]
then
echo "DIRECTORY [ $dir1 ] NOT EXIST"
exit 1
fi
#count total number of lines
len=`ls -l $dir | wc -l`
i=2
echo "File With Multiple Link are "
while [ $i -le $len ]
do
# select one by one record from entire group of records
record=`ls -l $dir | head -n $i | tail -n 1`
#grab the file name
f=`echo $record | cut -d " " -f 8`
#grab the total hard link to that file
link=`echo $record | cut -d " " -f 2`
#if multiple links then print file with link
if [ $link -gt 1 ]
then
echo "$f = $link"
fi
#increment the counter
i=`expr $i + 1`
done
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