dp1xter/printfile-utility

PrintFile-Utility

This utility allows you to output the contents of a text file to a standard output stream. The program supports the following command line arguments (options):

• -l, --lines=n - output only n (positive only) first (last) lines of the file (optional argument, by default all lines are output).
• -t, --tail - output n last lines of the file (optional argument).
• -d, --delimiter=c - character by which the end of the line is determined (optional, default is '\n'), parameter can be passed in single quotes, double quotes or no quotes at all.

Notes:

1. Delimiter parameter can be passed in single quotes, double quotes or no quotes at all.
2. You can specify a parameter for lines and delimiter only once.
3. The --tail (-t) option can be entered as many times as you like.
4. Options and file name can be arranged relative to each other as desired.

Requirements:

According to the requirements of lab-work, the use of the STL is prohibited.

Program start format:

PrintFile.exe [options] file_path

Launch examples:

PrintFile.exe -l 10 --delimiter='a' ./filename.txt - print the first 10 lines with delimiter character 'a'.
PrintFile.exe -d \t ./filename.txt --lines=123 - print the first 123 lines with a tab delimiter.
PrintFile.exe ./filename.txt -t --lines=12345 - print the last 12345 lines with the delimiter as a line break character.
PrintFile.exe --tail --delimiter=">" ./filename.txt -l 21 -t - print the last 21 lines with the delimiter as '>' character.
PrintFile.exe ./filename.txt - print the entire file.

Test file

File.txt content:

1;2;3;4;
5;6;7;8;
9;10;11;
12

Command line: PrintFile.exe File.txt --lines=5 -d ';'

Output:

1;2;3;4;
5;

Command line: PrintFile.exe File.txt --lines=3 -d ';' --tail

Output:

10;11;
12