I try this tools from BedTools but it doesnt work!
$ cat testgenome404.fa
>chr1 AAAAAAAACCCCCCCCCCCCCGCTACTGGGGGGGGGGGGGGGGGG $ cat test.bed chr1 5 10 $ ./fastaFromBed -fi testgenome404.fa -bed test.bed -fo test.fa.out **index file testgenome404.fa.fai not found, generating... unable to find FASTA index entry for 'chr1'** $ cat testgenome404.fa.fai chr1 46 7 46 47
what is this file "testgenome404.fa.fai" what does means this number? chr1 46 7 46 47
why this message?
unable to find FASTA index entry for 'chr1'
Thanks in advance for any help Sara