bash not taking <CR><LF>

[quarkjuggler]

I created a script under windows and moved it to RPi. bash kept giving "sytax error: unexpected end of file". Using hd, I discovered that lines ended with <CR><LF> rather than <LF>. Is there an easy way to fix this? Thanks.

[kusti8]

http://linuxcommand.org/man_pages/dos2unix1.html

[quarkjuggler]

Command not found. However, my linux mint said to "sudo apt-get install tofrodos", which I did on the Pi. It looked for all the world like it was installing, but I still don't find the command.

Meanwhile, I was trying this:

Code: Select all

tr -d \015 <build2.sh >build3.sh

I don't understand why this doesn't work. The output has retained the hex 0d. Did I goof up the syntax? man tr says to give a set of characters, so I tried surrounding \015 with [] and {}. Still no luck.

[quarkjuggler]

I got it with 'tr'! I had to put quotes around the \015 . Thanks for the

http://linuxcommand.org/man_pages/dos2unix1.html

BTW, thanks for the instructions for getting Chrome browser set up on the pi. It's miles better than the epiphany browser.

[DougieLawson]

sudo apt-get install dos2unix works on Raspbian.

[quarkjuggler]

Got it! Thanks. I shall never trust linux mint again.

[jbudd]

There's a trick in Bash which comes in handy with files containing the DOS CR/LF:
Normally <ENTER> (the Enter/Return key) signals the end of the current command and Bash tries to execute it. But <CTRL>v<ENTER> prevents this.

So you can get rid of the unwanted characters with this

Code: Select all

sed -e s/<CTRL>v<ENTER>// filename > filename.new

As you type it, <CTRL>v does not show on the screen, the following <ENTER> shows as "^M"

[quarkjuggler]

Code: Select all

sed -e s/<CTRL>v<ENTER>// filename > filename.new

There's that sed & awk stuff again! I worked at bash a bit but I haven't learned those two mammoth utilities yet. Fortunately, I can copy the characters onto my screen. Thanks, jbudd!

[jbudd]

There's that sed & awk stuff again! I worked at bash a bit but I haven't learned those two mammoth utilities yet.

The only computer book I have ever sat down and read from cover to cover is Aho, Kernighan & Weinberger - The AWK Programming Language.
1988 - those were the days!

[DougieLawson]

The only computer book I have ever sat down and read from cover to cover is Aho, Kernighan & Weinberger - The AWK Programming Language.
1988 - those were the days!

Wouldn't that be: Aho, Weinberger & Kernighan or did the language get renamed from AKW to AWK?

I quite enjoyed one of Brian Kernighan's other publications, done in collaboration with Dennis Ritchie, I learned a programming language from that one.

[jojopi]

Wouldn't that be: Aho, Weinberger & Kernighan or did the language get renamed from AKW to AWK?

That book is credited as A, K, W.

I quite enjoyed one of Brian Kernighan's other publications, done in collaboration with Dennis Ritchie, I learned a programming language from that one.

I very much liked one of Aho's other collaborations, The Dragon Book. It covers every language!

[cheez]

Another way to fix your CR+LF / LF problem, without needing to install anything additional, Raspbian comes with Leafpad. Open your script in Leafpad, do Save-as, at the bottom of the Save-as window you can select LF, CR+LF, or CR. In your case, select LF. Save file; done.

This feature can also be used if you want to take a file from GNU/Linux to MS Windows. Take your GNU/Linux file with the default LF, and save it with CR+LF, and now it will look right in Windows' Notepad.