It seems i have succesfully installed ecCodes. At least if i run the selfcheck in the terminal i get the expected response. 
If i run the sell script which is supposed to work with ecCodes it seems to cant find the commands though. This is the Response i get:
Does it matter in which Folder ecCodes is installed? Does someone know what my System is missing?
The Shell Script looks like this:
#!/bin/bash
GFS_DATE="20161120"
GFS_TIME="06"; # 00, 06, 12, 18
RES="1p00" # 0p25, 0p50 or 1p00
BBOX="leftlon=0&rightlon=360&toplat=90&bottomlat=-90"
LEVEL="lev_10_m_above_ground=on"
GFS_URL="http://nomads.ncep.noaa.gov/cgi-bin/filter_gfs_${RES}.pl?file=gfs.t${GFS_TIME}z.pgrb2.${RES}.f000&${LEVEL}&${BBOX}&dir=%2Fgfs.${GFS_DATE}${GFS_TIME}"
curl "${GFS_URL}&var_UGRD=on" -o utmp.grib
curl "${GFS_URL}&var_VGRD=on" -o vtmp.grib
grib_set -r -s packingType=grid_simple utmp.grib utmp.grib
grib_set -r -s packingType=grid_simple vtmp.grib vtmp.grib
printf "{\"u\":`grib_dump -j utmp.grib`,\"v\":`grib_dump -j vtmp.grib`}" > tmp.json
rm utmp.grib vtmp.grib
DIR="c:\\Users\My Name\Documents\CGTutorial\CGTutorial - Minimal"
node ${DIR}/prepare.js ${1}/${GFS_DATE}${GFS_TIME}
rm tmp.json
