Further fixing test of existence.

scripts/bam2bigwig.sh

@@ -36,12 +36,12 @@
 
 load_tools ()
 {
-     bedops --version 2> /dev/null || module load bedops/2.4.36
-     python3 -V 2> /dev/null || module load Python/3.7.2
-     samtools --version 2> /dev/null || module load samtools/1.9
-     bedtools --version 2> /dev/null || module load bedtools/2.25.0
-     niceload --version 2> /dev/null || module load parallel/20170122
-     bedGraphToBigWig 2> /dev/null || module load UCSC-tools/v373
+     command -v || module load bedops/2.4.36
+     command -v || module load Python/3.7.2
+     command -v samtools || module load samtools/1.9
+     command -v bedtools || module load bedtools/2.25.0
+     command -v niceload || module load parallel/20170122
+     command -v bedGraphToBigWig || module load UCSC-tools/v373
 }
 
 workdir=$(mktemp -d)