Filtering bed file

Question

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chr1 45 95 -

chr3 76 156 +

chr4 675 899 +

scaffold1 56 388 +

scaffold1 200 488 +

scaffold2 400 956 -

my bed file contains these lines and I want to remove the lines starting from scaffold any idea how to filter my bed file to exclude these lines ?

[Pierre Lindenbaum]

see https://linux.die.net/man/1/grep and option -v

Answer 1

[berge2015]

try: grep -v '^scaff*' infile > outfile

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Thanks

I got confuse with v ..it worked THanks