Unset PHO_NOTE_x variables when possible.

diff --git a/bashrc b/bashrc
index d84d7c9..f3d033a 100644 (file)
--- a/bashrc
+++ b/bashrc
@@ -292,15 +292,20 @@ function map () {
 ## variables
 
 function pho () {
-    PHO_BIN=$(which pho)
     TEMP=$(mktemp /tmp/pho.XXXXXXX)
-    ${PHO_BIN} "$@" | tee ${TEMP}
+    $(which pho) "$@" | tee ${TEMP}
     PHO_NOTE_1=$(grep ^"Note 1: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_2=$(grep ^"Note 2: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_3=$(grep ^"Note 3: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_R90=$(grep ^"Rotate 90 \(CW\): " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_R180=$(grep ^"Rotate 180: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_R270=$(grep ^"Rotate -90 \(CCW\): " ${TEMP} | sed -e "s/^[^:]*: //")
+    [[ "${PHO_NOTE_1}" ]] || unset PHO_NOTE_1
+    [[ "${PHO_NOTE_2}" ]] || unset PHO_NOTE_2
+    [[ "${PHO_NOTE_3}" ]] || unset PHO_NOTE_3
+    [[ "${PHO_NOTE_R90}" ]] || unset PHO_NOTE_R90
+    [[ "${PHO_NOTE_R180}" ]] || unset PHO_NOTE_R180
+    [[ "${PHO_NOTE_R270}" ]] || unset PHO_NOTE_R270
     \rm ${TEMP}
 }