c - How to find the length of a line in a text file? - Stack Overflow
2019年11月12日 · To use line oriented input, always declare a buffer of sufficient size to handle your anticipated max line of data (and then double, or quadruple the size for the buffer) For example, in your case, with a maximum anticipated line of 14-characters, a buffer size of 64 characters will do (don't skimp on buffer size). For example:
bash - Longest line in a file - Stack Overflow
2009年10月31日 · perl -ne 'print length()." line $. $_"' myfile | sort -nr | head -n 1 Prints the length, line number, and contents of the longest line. perl -ne 'print length()." line $. $_"' myfile | sort -n Prints a sorted list of all lines, with line numbers and lengths. is the concatenation operator - it is used here after length() $. is the current line ...
Count line lengths in file using command line tools
2017年1月20日 · Problem If I have a long file with lots of lines of varying lengths, how can I count the occurrences of each line length? Example: file.txt this is a sample file with several lines of varying l...
python - How to open a file and find the longest length of a line …
2014年4月10日 · import string def main(): print " This program reads from a file and then prints out the" print " line with the longest length the line ,or with the highest sum" print " of ASCII values , or the line with the greatest number of words" infile = open("30075165.txt","r") for line in infile: print line infile.close() def length(): maxlength = 0 ...
math - Line Equation with angle - Stack Overflow
2009年11月8日 · Line Equation. The equation of a line is. y = a*x + b where a is a tangent of an angle between a line and X-axis, and b is an elevation of the line drawn through (0, 0). Line equation given angle and a point. You can easily calculate a (since you know angle), but you don't know b. But you also know x0 and y0, so you can easily calculate b: b ...
swing - Find Length of Line in JAVA - Stack Overflow
2012年2月25日 · I want to find a length of line. I have initialize a coordinates x1,y1,x2,y2 using mouse Events. When i try to find distance as shown below: public class LineFunctions { static int dpi; st...
regex - Find lines by length in Notepad++? - Stack Overflow
2013年12月25日 · Go to Search > Find... > Select the Mark Tab. Make sure you have Regular expression checked under the Search Mode box and make sure you check the Bookmark Line box. You want to search for the following, still being under the Mark tab. Find what: ^.{15,} Finally, click Mark All which bookmarks the lines that have 15 characters or more. Example:
linux - Length of shortest line? - Stack Overflow
2012年9月26日 · Both awk solutions from above do not handle '\r' the way wc -L does. For a single line input file they should not produce values greater than maximal line length reported by wc -L.
How to print the number of characters in each line of a text file
while IFS= read -r line; do echo ${#line}; done < abc.txt It is POSIX, so it should work everywhere. Edit: Added -r as suggested by William. Edit: Beware of Unicode handling. Bash and zsh, with correctly set locale, will show number of codepoints, but dash will show bytes—so you have to check what your shell does.
How to find the length of argv [] in C - Stack Overflow
2013年9月6日 · The length of this array is stored in argc argument. strlen is meant to be used to retrieve the length of the single string that must be null-terminated else the behavior is undefined. Share