[SOLVED] Advanced Bash Scripting, Ch 16 ex 23

andrew.comly · 07-08-2017, 12:58 AM

Quote:

Originally Posted by hydrurga

An explanation of sorts can be found here:

Yes, in this explanation rush's solution gives a more simplified version, which I can accept.

My successful trial:

Code:

$ Ch16-23UnixToDOS_TextConv.sh ./A.TXT 
Original UNIX text file is "./A.TXT".
Converted DOS text file is "./A.TXT.DOS".
$ od A.TXT.DOS 
000000   S   e   e  sp   t   h   e  sp   d   o   g  cr  nl   s   e   e
        53  65  65  20  74  68  65  20  64  6f  67  0d  0a  73  65  65
000010  sp   t   h   e  sp   s   o   c   k   s  cr  nl   s   e   e  sp
        20  74  68  65  20  73  6f  63  6b  73  0d  0a  73  65  65  20
000020   t   h   e  sp   b   i   r   d  cr  nl   s   e   e  sp   t   h
        74  68  65  20  62  69  72  64  0d  0a  73  65  65  20  74  68
000030   e  sp   c   o   a   l  cr  nl   s   e   e  sp   D   o   n   a
        65  20  63  6f  61  6c  0d  0a  73  65  65  20  44  6f  6e  61
000040   l   d  sp   T   r   u   m   p  cr  nl
        6c  64  20  54  72  75  6d  70  0d  0a

Now I can make a simple script to be able to convert a UNIX-formatted text file into DOS-formatted text file, mainly through the following modifications to e23's code:

Code:

NEWFILENAME=$1.dos
sed 's/$/\r/' < $1 > $NEWFILENAME

All Complete!

Learning hands on can be as messy and changing your petrol-based automobile's oil, or fixing your man-powered bicycle. But I have made certain improvements as summed up by rtmistler below.

The thicker and deeper the mud, the more beautiful the lotus blooms. May we all live like the lotus: at ease in muddy water.

hydrurga · 07-08-2017, 04:04 AM

Have fun with your continued exploration of Bash scripting!

Laserbeak · 07-08-2017, 06:52 AM

dos2unix:

Code:

#!/usr/bin/perl
$/ = '';
$text = <>;
$text =~  s/\r\n/\n/gs;
print $text;

Usage:

Code:

$ chmod 755 dos2unix.pl
$ ./dos2unix.pl < BatchFtpDownloadOnlyNewFiles.bat > batch.unix