Truncate a file: Difference between revisions

NOTE[4]: Designed for regular text files. Does not work when files contain: chars 0x00 and 0xFF as of bash 4.2 - these chars are treated differently in read -N. For this reason use of method#4 is not prefer over dd(1) or truncate(1) when using binary files, or large files. [4b] http://unix.stackexchange.com/questions/8618/script-that-keep-reading-a-stream,[4a] https://groups.google.com/forum/#!topic/gnu.bash.bug/a2rjQHpQYSU