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format text

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nightwish
Advisor

format text

Hi

how can i format the text below whithout blank lines???

/dev/vg00/lvol7
/dev/vg00/lv52
/dev/vg00/lvol4
/dev/vg00/lvol5
/dev/vgwsx/lvol1
/dev/vg00/lvol6
/dev/vg00/lvoltib
/dev/vg00/lvol9
/dev/vgws_mpbe/lvol1

/dev/vgws_mpbe/lvol2

/dev/vgws_mpbe/lvol3

/dev/vgws_mpbe/lvol4

/dev/vgws_mpbe/lvol5

/dev/vgws_mpbe/lvol6

/dev/vgws_mpbe/lvolWS


regards .. I appreciated some help :)
3 REPLIES
Ivan Ferreira
Honored Contributor
Solution

Re: format text

Use:

cat file | grep -v ^$

command | grep -v ^$

The grep command in this case display all lines that ARE NOT blank lines. (^$) means the start of the line and the end of the line, that is, the start and end are together, with no info between.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
nightwish
Advisor

Re: format text

Thanks ...


Just the best..
Jared Middleton
Frequent Advisor

Re: format text

Another option is sed, as in:
sed '/^$/d' < myfile
or
{command} | sed '/^$/d'