Remove debug info and add examples to README

README.md

@@ -58,6 +58,67 @@ Available options:
 Calling ssget without arguments is equivalent to: ssget -i 0 -t MM -v
 ```
 
+Examples
+--------
+
+
+### Example 1
+
+Return properties of all matrices as a JSON array:
+
+```sh
+NUM_PROBLEMS=$(ssget -n)
+
+echo "["
+for (( i=1; i <= ${NUM_PROBLEMS}; ++i )); do
+ ssget -i $i -j
+ echo ","
+done
+echo "]"
+```
+
+
+### Example 2
+
+Download matrix arhives for the entire collection, and print the size:
+
+```sh
+NUM_PROBLEMS=$(ssget -n)
+
+TOTAL_SIZE=0
+
+for (( i=1; i <= ${NUM_PROBLEMS}; ++i )); do
+ # ssget -i $i -j
+ ARCHIVE=$(ssget -i $i -f)
+ SIZE=($(du -k ${ARCHIVE}))
+ echo "${ARCHIVE}: ${SIZE}KB"
+ TOTAL_SIZE=$((${TOTAL_SIZE} + ${SIZE}))
+done
+
+echo "Total: ${TOTAL_SIZE}KB"
+```
+
+__NOTE:__ This will transfer and store a huge amount of data!
+
+
+### Example 3
+Extract (and download if needed) the matrix with ID=10, pass its location to
+the program `foo` and delete the extracted files (but keep the archive)
+afterwards:
+
+```sh
+foo $(ssget -ei10)
+ssget -ci10
+```
+
+### Example 4
+Delete the archive for matrix with ID=10
+
+```sh
+ssget -ri10
+```
+
 License
 -------
 BSD 3-clause
+

ssget

@@ -70,9 +70,14 @@ download_info() {
 }
 
 
+PROPS=""
 get_properties() {
  download_info
- head -$((${MATRIX_ID} + 2)) "${ARCHIVE_LOCATION}/ssstats.csv" | tail -1
+ if [ "${PROPS}" == "" ]; then
+ PROPS=$(head -$((${MATRIX_ID} + 2)) "${ARCHIVE_LOCATION}/ssstats.csv" \
+ | tail -1)
+ fi
+ echo ${PROPS}
 }
 
 
@@ -135,8 +140,6 @@ EOT
 
 download_archive() {
  PATH_INFO=($(get_path_info))
- echo "${PATH_INFO[@]}"
-
  if [ ! -f ${PATH_INFO[4]} ]; then
  curl -Lo ${PATH_INFO[4]} ${PATH_INFO[3]}
  fi