Write a C program implementing Linux tr command. You have to specify both symbols and two file names as command line arguments.
/* tr stands for translate , command used to transform lowercase
to uppercase, to replace characters with other,to delete characters
and to squeeze repeated characters
*/
/* In the given below program ,we used tr command to replace
contents of file2 with file 1 and also replce all the character "a"
with the character "d" */
#include<stdio.h>
#include<stdlib.h>
int main()
{
system("tr a d <file1.txt> file2.txt");
}
Write a C program implementing Linux tr command. You have to specify both symbols and two...
After reading pages 330 - 336, write a program that takes two command line arguments which are file names. The program should read the first file line by line and write each line, in reverse order, into the second file. The program should include a "usage" method that displays the correct command line syntax if two file names are not provided. Example: if my input file says Hello, World! then my output file will contain !dlroW ,olleH Hints: Use CaesarCipher...
Write a linux command that will add a "#" character to the start of every line that does not already start with a "#" character. Write a linux command that will append all lines of the /etc/passwd file that contain the word "STUDENT" to the end of the file. Write a linux command that will move the last word of each line to the start of the line. Write a linux command that will add the line number to the...
1) Write a C program that displays all the command line arguments that appear on the command line when the program is invoked. Use the file name cl.c for your c program. Test your program with cl hello goodbye and cl 1 2 3 4 5 6 7 8 and cl 2) Write a C program which displays the sum of the command line arguments. Hint: use sscanf to convert the decimal arguments (which are strings) to binary numbers that...
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Objective: Use input/output files, strings, and command line arguments. Write a program that processes a text file by removing all blank lines (including lines that only contain white spaces), all spaces/tabs before the beginning of the line, and all spaces/tabs at the end of the line. The file must be saved under a different name with all the lines numbered and a single blank line added at the end of the file. For example, if the input file is given...
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You are required to write a C program on Unix/Linux in which the parent process creates three child processes, lets them run concurrently, and waits for them to return and prints their exit status. The three child processes are assigned different tasks. Child one is to calculate and display the highest mark of a class of ten students for a unit. Child one is required to get the marks from the standard input (i.e. the keyboard). Child two is to...
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Write a C program to Simulate Implementation of Linux *cp* command. Copying Files and directories