linux - deleting some undesirable rows -


i have file below , want delete rows don't have value in fourth column.

experiment replica module mean general1 0 scenario.host[229].app   general1 1 scenario.host[229].app 0.00235355  general1 2 scenario.host[229].app   general1 3 scenario.host[229].app 0.0783413  general1 4 scenario.host[229].app   general3 0 scenario.host[229].app   general3 1 scenario.host[229].app 0.540335  general3 2 scenario.host[229].app   general3 3 scenario.host[229].app   general3 4 scenario.host[229].app   general1 0 scenario.host[229].app

try following:

awk 'nf>3' file

edit: added per @adrianfrühwirth's request:

whenever find writing requirements in negative terms (e.g. "i want delet rows doesn't have...") take second see if can express in positive way (e.g. "i want select rows have...") , you'll find easier come solution , avoid risk of introducing double negatives make comprehension far more difficult.


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