Intro

quanah:/lustre/scratch/jenjense$ cd 200mammals
quanah:/lustre/scratch/jenjense/200mammals$ ls wc -l
ls: cannot access wc: No such file or directory
quanah:/lustre/scratch/jenjense/200mammals$ ls|wc -l
2
quanah:/lustre/scratch/jenjense/200mammals$ ls
round2_complete  round3_complete
quanah:/lustre/scratch/jenjense/200mammals$ cd ../..
quanah:/lustre/scratch$ mkdir yanchen
mkdir: cannot create directory ‘yanchen’: Permission denied
quanah:/lustre/scratch$ quanah:/lustre/scratch$ mkdir yanchen
-bash: quanah:/lustre/scratch$: No such file or directory
quanah:/lustre/scratch$ mkdir: cannot create directory ‘yanchen’: Permission denied
-bash: mkdir:: command not found
quanah:/lustre/scratch$ cd yanchen
-bash: cd: yanchen: No such file or directory
quanah:/lustre/scratch$ ~
-bash: /home/yannchen: Is a directory
quanah:/lustre/scratch$ cd yannchen
quanah:/lustre/scratch/yannchen$ mkdir testing
quanah:/lustre/scratch/yannchen$ ls
testing