5
votes
1answer
139 views

Cannot cat or grep contents of file

I'm on Debian Jessie. When I open a new textfile with mousepad and save it, then modify it with vim and save it again, I cannot print or grep the contents of it anymore. If I do cat file, nothing is ...
4
votes
2answers
56 views

Verify line endings from a text created by perl script

I am interested in seeing the contents of a text file in hex mode. I have tried :%!xxd and the problem is that I can not really understand which hex code represents each letter e.g. when you use an ...
1
vote
1answer
332 views

Carriage Return and Line Feed bit streams in a binary file during TFTP upload in ASCII mode

In case of TFTP, one can choose between "ASCII" or "octet" mode. As I have understood, 00001010(new-line) or 00001101(carriage return) bit streams in a binary file will get some sort of special ...
3
votes
1answer
160 views

Is the last new line on fstab important?

What happens if the last line of fstab is not terminated by a newline? Why do people get a warning when that last line is not terminated by a newline?
4
votes
2answers
1k views

Character count in Unix wc command

When I give wc command on a file with contents given below, it gives the number of characters as 30. Does it include the end of file character? Since including the space and newline there are only 29 ...
2
votes
2answers
447 views

view file containing ISO-8859 text, CRLF line terminators, and escape sequences

I have stumbled upon a strange text file in an archive of an old dos game downloaded from some abandonware site. The text file is named WHY_NOT.TXT. I assume the file is some sort of .NFO file from ...
0
votes
1answer
101 views

What does this “matching lines means”?

The grep manual says "By default, grep prints the matching lines.". What does this matching lines says. When I tried its prints the whole paragraph containing the pattern.
8
votes
2answers
2k views

Finding all “Non-Binary” files

Is it possible to use the find command to find all the "non-binary" files in a directory? Here's the problem I'm trying to solve. I've getting an archive of files from a windows user. This archive ...
4
votes
3answers
491 views

How to skip file in sed if it contains regex?

I currently use the following simplified command to remove trailing whitespace and add a newline at end of file where needed: find . -type f -exec sed -i -e 's/[ \t]\+\(\r\?\)$/\1/;$a\' {} \+ As ...