>NODE_1713_length_83_cov_1.000000
CCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCTACCTCT
NODE_1714_length_78_cov_80895.000000
GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
NODE_1715_length_78_cov_4750.000000
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
NODE_1716_length_78_cov_351.000000
TGCATCCGGGAGGATTCGAACCTCCGACCGCTCGGTTCGTAGCCGAGTACTCTATCCAGCTGAGCTACGGATGCATTG
NODE_1717_length_78_cov_351.000000
TTGCTCTTTAACAATCCGGAACAAGCTGAAAATTTGAAACGACACAGGGTCGCATTCTTCCGTAATAAAGAATGATGA
想批量删除编号后面的length和cov
即NODE_1713_length_83_cov_1.000000变成NODE_1713
可以使用python写一个简单的脚本。
sed -i "s/(NODE_[0-9]+).*/\1/" file