format text

[nightwish]

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 :)

[Ivan Ferreira · Accepted solution]

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.

[nightwish]

Thanks ...


Just the best..

[Jared Middleton]

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