I am trying to replace some character strings using sed in batch console. My input consists in a file with lines like these:
$ head qiimetax_sorted.txt
A61579.1.1437
D_0__Bacteria;D_1__Thermotogae;D_2__Thermotogae;D_3__Thermotogales;
D_4__Fervidobacteriaceae;D_5__Fervidobacterium;Ambiguous_taxa;D_7__;
D_8__;D_9__;D_10__;D_11__;D_12__;D_13__;D_14__
AAAA02020712.626.2096
D_0__Bacteria;D_1__Proteobacteria;D_2__Alphaproteobacteria;D_3__Rhizobiales;
D_4__Bradyrhizobiaceae;D_5__uncultured;D_6__Oryza sativa
Indica Group (long-grained rice);D_7__;D_8__;D_9__;D_10__;D_11__;D_12__;
D_13__;D_14__
Now I'm trying to erase the 'D_number__' string before the names with this sed command and it is not replacing anything:
sed -r 's/D_\d+__//g' qiimetax_sorted.txt > qiimesed.txt
Any idea of which is the problem? Thanks!
Your regex syntax is perl like.
So if you want to keep it :
perl -pe 's/D_\d+__//g' qiimetax_sorted.txt > qiimesed.tx
or with sed :
sed -r 's/D_[0-9]+__//g' qiimetax_sorted.txt > qiimesed.tx
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