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Full Discussion: Cat Command on File not printing "Blank" Lines?
Top Forums Shell Programming and Scripting Cat Command on File not printing "Blank" Lines? Post 302677759 by mrm5102 on Thursday 26th of July 2012 03:48:34 PM
Old 07-26-2012
Cat Command on File not printing "Blank" Lines?
Hello All,

I have a bash script and in it at some point I call an Expect Script that does some stuff and saves its
output in a ".txt" file.

Example "/path/to/my/file/Expect_Output.txt" file: notice the 2nd line is empty in the file...
Code:
Data for Host-1 (192.168.1.110)

Checking the status...
Status is GOOD

Then later on in my Bash script, I run the following command to put all the contents of the file
into an array, line-by-line...
Code:
EXPECT_OUTPUT="/path/to/my/file/Expect_Output.txt"

outputArray=( $(cat "$EXPECT_OUTPUT") )

I thought the contents of the array should be this:
(0) = "Data for Host-1 (192.168.1.110)"
(1) = ""
(2) = "Checking the status..."
(3) = "Status is GOOD"

But when I loop through the array and echo out the data I get the following:
Code:
for ((x=0; x <= ${#outputArray[@]}; x++))
 do
    echo "${outputArray[$x]}"
done




_____OUTPUT_____
Data for Host-1 (192.168.1.110)
Checking the status...
Status is GOOD

Does anyone know why it wouldn't retain the empty line when saving into the array?
Any thoughts would be much appreciated...!


Thanks in Advance,
Matt
 

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LEARN ABOUT REDHAT

unix2dos

unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME

       unix2dos - UNIX to DOS text file format converter

SYNOPSYS

       unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates unix2dos under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      unix2dos

       Convert and replace a.txt. Convert and replace b.txt.

	      unix2dos a.txt b.txt

	      unix2dos -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.

	      unix2dos a.txt -c iso b.txt

	      unix2dos -c ascii a.txt -c iso b.txt

       Convert and replace a.txt while keeping original date stamp.

	      unix2dos -k a.txt

	      unix2dos -k -o a.txt

       Convert a.txt and write to e.txt.

	      unix2dos -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      unix2dos -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      unix2dos a.txt -n b.txt e.txt

	      unix2dos -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHOR

       Benjamin Lin - ( blin@socs.uts.edu.au )

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       dos2unix(1)

1995.03.31							   unix2dos v2.2						       unix2dos(1)
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