Apply runtime shebanging to POSIX shell

1 files changed, 24 insertions, 0 deletions

diff --git a/bin/cf.sh b/bin/cf.sh
new file mode 100644
index 00000000..ea3a2887
--- /dev/null
+++ b/bin/cf.sh
@@ -0,0 +1,24 @@
+# Count entries in a given set of directories
+
+# Iterate over remaining non-option arguments (directories); default to current
+# directory if none given
+for dir in "${@:-.}" ; do
+
+    # Attempt to count the files in a subshell
+    if count=$(
+        cd -- "$dir" || exit
+        find . ! -name . -prune -exec printf %.sx {} + |
+        wc -c
+    ) ; then
+
+        # If it worked, print the count
+        printf '%u\t%s\n' "$count" "$dir"
+    else
+
+        # If not, set the error flag and continue
+        ex=1
+    fi
+done
+
+# Exit non-zero if a non-directory was given as an argument
+exit "${ex:-0}"