GTU Engineering Semester - 5 Syllabus Download

ANALYSIS AND DESIGN OF ALGORITHMS - 3150703 

INTEGRATED PERSONALITY DEVELOPMENT COURSE - 3150005 

Professional Ethics - 3150709 

Computer Networks - 3150710 

Cyber Security - 3150714 

SOFTWARE ENGINEERING - 3150711 

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GTU OS Program - 11 Filters

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11. Shell programming using filters (including grep, egrep, fgrep). The programs that take plain text as standard input and transforms it into a meaningful format, and then returns it as a standard output is known as Filters. Some of the most commonly used filters are explained below: cat head tail sort uniq wc grep tac sed nl 1. cat: Displays the text of the file line by line. Syntax cat [path] Output 2. head: Displays the first n lines of the specified text files. If the number of lines is not specified then by default prints first 10 lines. Syntax head [-number_of_lines_to_print] [path] Output 3. tail: It works the same way as head, but in reverse order. It returns the lines from bottom to up Syntax tail [-number_of_lines_to_print] [path] Output 4. sort: sorts the lines alphabetically by default but we can customize the ...
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GTU OS Program - 13 Date Validator

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13. Write a shell script to validate the entered date. (eg. Date format is : dd-mm-yyyy). Complete code of the program echo "Date validator" #Initializing values of date, month and year dd=0 mm=0 yy=0 #initializing no of days in a month days=0 read -p "Enter day (dd) : " dd read -p "Enter Month (mm) : " mm read -p "Enter Year (yyyy) : " yy #checking for invalid month if [ $mm -le 0 -o $mm -gt 12 ] then echo "$mm is invalid month. " exit 1 fi #finding out no. of days in a month case $mm in 1 | 3 | 5 | 7 | 8 | 10 | 12) days=31 ;; 2) days=28 ;; 4 | 6 | 9 | 11) days=30 ;; *) days=-1 ;; esac #checking for leap year if [ $mm -eq 2 ] then a=`expr $yy % 4` b=`expr $yy % 100` c=`expr $yy % 400` if [ $a -eq 0 -a $b -ne 0 -o $c ...
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GTU OS Program - 8

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8. Write a shell script to read n numbers as command arguments and sort them in descending order. Complete code of the program read -p "Enter the number of values you want to sort " n for((i=0; i<$n; i++)) do read -p "Enter value of arr[$i]: " arr[$i] done #sorting code for((i=0; i<$n; i++)) do for((j=0; j<n-i-1; j++)) do if [ ${arr[j]} -lt ${arr[$((j+1))]} ] then #swapping temp=${arr[j]} arr[$j]=${arr[$((j+1))]} arr[$((j+1))]=$temp fi done done echo "Numbers sorted in descending order as" echo ${arr[*]} Interpreting the sort.sh file and executing it in terminal tkanu025@hp:~/lab_solutions$ chmod +x sort.sh tkanu025@hp:~/lab_solutions$ ./sort.sh Output Previous Program Next Program gtu os lab manual, os GTU Practical, opera...
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