Sed command usage question


 
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# 1  
Old 11-07-2019
Sed command usage question

How to work x in sed command?
I know x command is swaps the contents of pattern space and hold space. But i am unable to understand it's working?

Last edited by Vartika18; 11-07-2019 at 03:17 PM..
# 2  
Old 11-07-2019
Can you please be more precise and note your operating system with shell details.
Offer an example of your problem and/or make better wording.

Regards
Peasant.
This User Gave Thanks to Peasant For This Post:
# 3  
Old 11-07-2019
Ok,
Example is
In a file content are
Code:
a
b
c
d

Code:
sed  'x;p;x' filename

How x will work?
# 4  
Old 11-07-2019
Please answer the questions raised by Peasant.



All sed command operate on the pattern space; hold space is just a bucket for intermediate storage. Your code snippet swaps the line just read into pattern space with the (empty) hold space, prints that, swaps spaces again, and (by default) prints the original line.
This User Gave Thanks to RudiC For This Post:
# 5  
Old 11-08-2019
Yes @peasent Sir,
My operating system is ubuntu.
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