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Top Forums Shell Programming and Scripting Splitting Single line into multiple line Post 302863763 by diehard on Tuesday 15th of October 2013 05:30:10 AM
Old 10-15-2013
Splitting Single line into multiple line

Hi All,

I am reading a line from a file and writing it to other file.
Whenever I got a particular line then I want that line to be splited into 4 line and written it to new file. e.g My line is

Code:
U_ABC  connector3  pin24E  connector4  pin25E  connector5  pin26E  connector6  pin27E  connector7  pin27F  connector8  pin26F  connector9  pin25F  connector10  pin24F  connector11  pin23F  connector0  pin21E  connector12  pin22F  connector1  pin22E  connector13  pin21F  connector2  pin23E

I want above line to be splitted into four line as below.

1.Every line will start from first name U_ABC.
2.First line will have connection0 and its subsequent pin number,connection1 and its subsequent pin number, connection2 and its subsequent pin.
3. Same for other three line in seq.
4. Connection7 and connection13 along with their pin number should be not be included.

I can split it into four line as
Code:
awk '{for (i = 1; i <= NF; i += 3) printf "%d %d %d\n", $i, $(i+1), $(i+2)}' file

but dont no how to write it in sequence as above. Do I need to save it in some form of dictionary first?

Thanks

Moderator's Comments:
Mod Comment You need CODE tags for input and output samples as well as for code samples. Especially when there is more than a single space between fields and when a line will be split into multiple lines when CODE tags are not used.

Last edited by Don Cragun; 10-15-2013 at 06:52 AM.. Reason: Add CODE tags.
 

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gets(n) 						       Tcl Built-In Commands							   gets(n)

__________________________________________________________________________________________________________________________________________________

NAME
gets - Read a line from a channel SYNOPSIS
gets channelId ?varName? _________________________________________________________________ DESCRIPTION
This command reads the next line from channelId, returns everything in the line up to (but not including) the end-of-line character(s), and discards the end-of-line character(s). If varName is omitted the line is returned as the result of the command. If varName is specified then the line is placed in the variable by that name and the return value is a count of the number of characters returned. If end of file occurs while scanning for an end of line, the command returns whatever input is available up to the end of file. If chan- nelId is in nonblocking mode and there is not a full line of input available, the command returns an empty string and does not consume any input. If varName is specified and an empty string is returned in varName because of end-of-file or because of insufficient data in non- blocking mode, then the return count is -1. Note that if varName is not specified then the end-of-file and no-full-line-available cases can produce the same results as if there were an input line consisting only of the end-of-line character(s). The eof and fblocked commands can be used to distinguish these three cases. SEE ALSO
file(n), eof(n), fblocked(n) KEYWORDS
blocking, channel, end of file, end of line, line, nonblocking, read Tcl 7.5 gets(n)
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