How do I delete a specific line from text file in C?

How do I delete a specific line from text file in C?

Delete from a text file using C

1. #include
2. int main(){
3. FILE *fptr1, *fptr2;
4. char file1[] =”file1.txt”;
5. char file2[] =”file2.txt”;
6. char curr;
7. int del, line_number = 0;
8. printf(“Please enter the line number you want to delete : “);

How do I remove a word from a file in Unix?

How do I match and remove (delete) the words “ssh_args=-p 1222” from config file using sed command under Linux or Unix like operating systems? You can use the the substitute sed command changes all occurrences of the “ssh_args=-p 1222”. The same command can be used to delete the required words.

How do you delete a single line from a text file in Python?

Use the below steps to delete the first line from a file.

1. Open file in a read and write mode ( r+ )
2. Read all lines from a file.
3. Move file pointer at the start of a file using the seek() method.
4. Truncate the file.
5. Write all lines from a file except the first line.

How do you clear a text file in Linux?

5 Ways to Empty or Delete a Large File Content in Linux

1. Empty File Content by Redirecting to Null.
2. Empty File Using ‘true’ Command Redirection.
3. Empty File Using cat/cp/dd utilities with /dev/null.
4. Empty File Using echo Command.
5. Empty File Using truncate Command.

How do you remove text from a PDF file?

After opening your PDF file in PDFelement, click the “Protect” > “Mark items to be redacted” button. Use the mouse to select the text that you want to delete. Step 2. Remove Text from PDF. Click the “Apply Redaction” button to permanently remove text from PDF, and you can save your PDF document.

How to delete text between word1 and Word2?

I have text as follows in file: I would like to delete all lines between WORD1 and WORD2 to produce final output: For selective deletion of certain lines sed is the best tool. To print all of file EXCEPT section between WORD1 and WORD2 (2 regular expressions), use

Is there a way to remove a line from a file?

There is no magic to removing lines. Copy the file line by line, without the line you don’t want. Delete the original file. rename the copy as the original file. You make a new file by writing to a file which doesn’t exist.

Which is the best tool to delete text between two sections?

For selective deletion of certain lines sed is the best tool. To print all of file EXCEPT section between WORD1 and WORD2 (2 regular expressions), use Here is my small script that reads all *.html files and removes javascript (script download link ). Above shell script removes all occurrence of javascript.