Thank you. I fixed my command a little bit and I am getting a new error that I am still not sure what to make of:
[npetrill@trogdor util]$ perl align_and_estimate_abundance.pl --transcripts /home/richardsonlab/AMMA_transcripts/trinity_out_dir/Trinity.fasta --seqType fq --left /home/richardsonlab/AMMA_transcripts/R1V22_B9F8St_ACTTGA_L002_R1_001.qualitytrimmer30.fastq --right /home/richardsonlab/AMMA_transcripts/R1V22_B9F8St_ACTTGA_L002_R2_001.qualitytrimmer30.fastq --est_method RSEM --aln_method bowtie --trinity_mode --output_dir /home/npetrill/aligning
which: no rsem-calculate-expression in (/home/npetrill/trinityrnaseq-2.1.1/util/../trinity-plugins/rsem:/usr/lib64/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/npetrill/bin:/usr/local/bin/trinityrnaseq-2.0.6:/usr/local/bin/bowtie-1.1.2:/home/npetrill/samtools-0.1.19:home/npetrill/cmake-3.4.2:/home/npetrill:/home/npetrill/scripts)
ERROR, cannot find rsem-calculate-expression in PATH setting: /home/npetrill/trinityrnaseq-2.1.1/util/../trinity-plugins/rsem:/usr/lib64/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/npetrill/bin:/usr/local/bin/trinityrnaseq-2.0.6:/usr/local/bin/bowtie-1.1.2:/home/npetrill/samtools-0.1.19:home/npetrill/cmake-3.4.2:/home/npetrill:/home/npetrill/scripts
Please be sure bowtie and express are installed and the utilities samtools bowtie-build bowtie rsem-calculate-expression are available via your PATH setting.