I'm running a Perl script from the EMBL (found here https://github.com/EMBL-EBI-GCA/reseqtrack/blob/master/scripts/variation_data/calculate_allele_frq_from_vcf.pl) Under Ubuntu 16.10 I have installed Vcftools and Tabix as is required and both have been tested to work accordingly. I execute the script with the following command: 
perl /home/[user]/calculate_allele_frq_from_vcf.pl \
-vcf /home/[user]/share/1000genomesPhase3VCFFiles/ALL.chr1.phase3_shap
+eit2_mvncall_integrated_v5a.20130502.genotypes.vcf.gz \
-sample_panel /home/[user]/share/1000genomesPhase3VCFFiles/integrated_
+call_samples_v3.20130502.ALL.panel \
-out_dir /home/[user]/Desktop/AlleleFrequency \
-tabix  /home/[user]/tabix-0.2.6 \
-vcftools_dir /home/[user]/vcftools_0.1.13 \
-region 1:1-10000 \
-pop CEU,FIN \

[download]
This returns the following error 
Smartmatch is experimental at /home/[user]/calculate_allele_frq_from_v
+cf.pl line 133.
Smartmatch is experimental at /home/[user]/calculate_allele_frq_from_v
+cf.pl line 144.
sh: 1: /home/[user]/tabix-0.2.6: Permission denied
Broken VCF header, no column names?
 at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 172.
    Vcf::throw(Vcf4_2=HASH(0x55761601d320), "Broken VCF header, no col
+umn names?") called at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 
+866
    VcfReader::_read_column_names(Vcf4_2=HASH(0x55761601d320)) called 
+at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 601
    VcfReader::parse_header(Vcf4_2=HASH(0x55761601d320)) called at /ho
+me/[user]/vcftools_0.1.13/perl/vcf-subset line 121
    main::vcf_subset(HASH(0x557615b24558)) called at /home/[user]/vcft
+ools_0.1.13/perl/vcf-subset line 12
Broken VCF header, no column names?
 at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 172.
    Vcf::throw(Vcf4_2=HASH(0x55fa53436f60), "Broken VCF header, no col
+umn names?") called at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 
+866
    VcfReader::_read_column_names(Vcf4_2=HASH(0x55fa53436f60)) called 
+at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 601
    VcfReader::parse_header(Vcf4_2=HASH(0x55fa53436f60)) called at /ho
+me/[user]/vcftools_0.1.13/perl/fill-an-ac line 45
    main::fill_an_ac(undef) called at /home/[user]/vcftools_0.1.13/per
+l/fill-an-ac line 9
sh: 1: /home/[user]/tabix-0.2.6: Permission denied
Broken VCF header, no column names?
 at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 172.
    Vcf::throw(Vcf4_2=HASH(0x5607d059a190), "Broken VCF header, no col
+umn names?") called at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 
+866
    VcfReader::_read_column_names(Vcf4_2=HASH(0x5607d059a190)) called 
+at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 601
    VcfReader::parse_header(Vcf4_2=HASH(0x5607d059a190)) called at /ho
+me/[user]/vcftools_0.1.13/perl/vcf-subset line 121
    main::vcf_subset(HASH(0x5607d00a1558)) called at /home/[user]/vcft
+ools_0.1.13/perl/vcf-subset line 12
Broken VCF header, no column names?
 at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 172.
    Vcf::throw(Vcf4_2=HASH(0x556b8e952110), "Broken VCF header, no col
+umn names?") called at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 
+866
    VcfReader::_read_column_names(Vcf4_2=HASH(0x556b8e952110)) called 
+at /home/[user]/vcftools_0.1.13/perl/Vcf.pm line 601
    VcfReader::parse_header(Vcf4_2=HASH(0x556b8e952110)) called at /ho
+me/[user]/vcftools_0.1.13/perl/fill-an-ac line 45
    main::fill_an_ac(undef) called at /home/[user]/vcftools_0.1.13/per
+l/fill-an-ac line 9
/home/[user]/Desktop/AlleleFrequency/calculated_fra.process3085.1.1-10
+000.CEU_FIN

[download]
It appears that the script doesn't have permission to access Tabix for some reason. I've given the folder full read/write permission for the user executing the script (me). Any ideas?

In reply to Perl script cannot access folder by Billebaars

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