abc

for X in $(ls);do N=$(grep -c "." $X);
for W in $(seq 1 $N);do Y=$(sed -n "$W"p $X);
AN=$(echo $Y | cut -f1 -d "+");
AN=$(echo $AN | tr '[:upper:]' '[:lower:]');
Seq=$(echo $Y | cut -f2 -d "+");
extractseq -sequence /Users/remironzano/Desktop/Bioinfo/BioInfoProjet/Unisequence.fasta_avec_nom_accessionnumber/$AN.fasta  -regions $Seq -outseq /Users/remironzano/Desktop/Bioinfo/BioInfoProjet/Resultats_seq_signal.txt; done; done