get_vals

#!/bin/bash
# (c) Stefan Countryman, 2016

# reformat the output of an nds_query into a tabular format with time in the
# first column and trend value in the second

tabularize_nds_query_result () {
    # local n_values
    local gps_start_time
    read -r l
    gps_start_time=$(sed 's/.*GPS: \([0-9]*\).*$/\1/' <<<"$l")
    read -r
    read -r
    read -r l
    # this next line is currently unused; might remove
    # n_values=$(sed 's/.*nWords: \([0-9]*\).*$/\1/' <<<"$l")
    sed 's/ *[0-9]* *//;s/  */'$'\\\n/g' \
        | awk '{printf "%s\n", $0}'
}

USAGE () {
    cat <<"EOF"
Format the results of an NDS query so that it is just a newline delimited
timeseries (with no t-axis, just a single column). This is the format read
in by geco_irig_decode.

example: 

nds_query \
    -n nds.ligo.caltech.edu \
    -s $(lalapps_tconvert "$start_time") \
    -d 30 \
    -v $chan \
        | get_vals \
        | ~/geco/geco_data/geco_irig_decode.py
EOF
}

if [ "$1"q = '-hq' ]; then
    USAGE
    exit
fi

tabularize_nds_query_result