UNIX for Dummies Questions & Answers

Greetings

I need to replace "whitespace" in a file with the newline character aka carriage return

My command is either wrong or not interpreted properly by me shell

Code:

 
sed s/" "/\\n" "/g nets > nets1

or

Code:

 
sed s/" "/\n" "/g nets > nets1

nets (input file)
13MHZ_IN U1.AC21 Y2.1;
13MHZ_OUT R19.2 U1.AD21;
32KHZ_IN 46.1 C8.2 U1.AA22;

nets1 (output file)
13MHZ_INn U1.AC21n Y2.1;
13MHZ_OUTn R19.2n U1.AD21;
32KHZ_INn 46.1n C8.2n U1.AA22;

This is the result that I want
13MHZ_IN
U1.AC21
Y2.1;
13MHZ_OUT
R19.2
U1.AD21;
32KHZ_IN
46.1
C8.2
U1.AA22;

redoubtable@Tsunami ~ $ sed 's/\s/\n/g' nets
13MHZ_IN
U1.AC21
Y2.1;
13MHZ_OUT
R19.2
U1.AD21;
32KHZ_IN
46.1
C8.2
U1.AA22;
redoubtable@Tsunami ~ $

The commands you provided work in bash 3.2.29

Would using tr(1) instead of sed(1) be ok?

Code:

$ cat newinputfile
13MHZ_IN U1.AC21 Y2.1;
13MHZ_OUT R19.2 U1.AD21;
32KHZ_IN 46.1 C8.2 U1.AA22;
$ tr ' ' '\012' < newinputfile
13MHZ_IN
U1.AC21
Y2.1;
13MHZ_OUT
R19.2
U1.AD21;
32KHZ_IN
46.1
C8.2
U1.AA22;
$

Thanks a bunch TonyFullerMalv translate (tr) worked like a charm
I know that \012 is CR what is ' ' ' ? single quoted spaces?

I needed to redirect the STD OUT to a new file, as the file "netlist" is over 4000 lines.

nets1
13MHZ_IN U1.AC21 Y2.1;
13MHZ_OUT R19.2 U1.AD21;
32KHZ_IN 46.1 C8.2 U1.AA22;
5V 380.1 C100.1 C321.1 C322.1 L10.1 L56.2 Q1.4 R88.1 R260.2 R262.1;

Code:

 
tr ' ' '\012' < nets1 > netlist

netlist
13MHZ_IN
U1.AC21
Y2.1;
13MHZ_OUT
R19.2
U1.AD21;
32KHZ_IN
46.1
C8.2
U1.AA22;
5V
380.1
C100.1
C321.1
C322.1
L10.1
L56.2
Q1.4
R88.1
R260.2
R262.1;

The ' ' is literally just a space the character you wish to translate to a newline, so if you also wanted to translate other white spaces to newlines also, they would need to be added to the list, e.g. to translate a null or a space or a tab to a newline it would be:

Code:

tr `\000 \011` '\012'