fixed var syntax

Author: kbpi314

scripts/extract_feature_table.sh

@@ -8,14 +8,14 @@ file_type="${3:-tsv}" # tsv, biom, or fasta
 tmp_dir_name="${4:-tmp_unzip}"
 unzip -joq $in_file -d $tmp_dir_name
 
-if [$file_type = "tsv"]; then
+if [["$file_type" = "tsv"]]; then
     biom convert --to-tsv -i $tmp_dir_name/feature-table.biom -o $out_file
     sed -i '1d;2s/^#//' $out_file
     rm -rf $tmp_dir_name
-elif [$file_type = "biom"]; then
+elif [["$file_type" = "biom"]]; then
     cp $tmp_dir_name/feature-table.biom $out_file
     rm -rf $tmp_dir_name
-elif [$file_type = "fasta"]; then
+elif [["$file_type" = "fasta"]]; then
     cp $tmp_dir_name/dna-sequences.fasta $out_file
     rm -rf $tmp_dir_name
 else