lab1-2

lab2/fdir.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+
+show_help() {
+	cat <<-EOF
+        Usage: $(basename "$0") [OPTIONS] <ROOT_DIR> <DATE> [COMMAND...]
+        Finds directories inside ROOT_DIR that were modified before DATE
+        and executes provided COMMAND inside each of them.
+
+        Just lists directories if COMMAND is not provied.
+
+        Options:
+          -h            Show help
+          -v            Verbose output
+
+        DATE formats:
+          Accepts any date format understood by the 'date' command.
+          Examples:
+            2025-10-05
+            "2025-10-05 12:00"
+            "Oct 5 2025"
+            "yesterday"
+            "2 weeks ago"
+
+        Examples:
+          $(basename "$0") /var/log 2025-10-05
+          $(basename "$0") /tmp "2025-10-05 18:00" pwd 
+	EOF
+}
+
+VERBOSE=0
+
+while getopts "hv" opt; do
+        case $opt in
+                h)
+                        show_help
+                        exit 0
+                        ;;
+                v)
+                        VERBOSE=1
+                        ;;
+                *)
+                        echo "Unknown arguments, use -h for help."
+                        exit 1
+                        ;;
+        esac
+done
+shift $((OPTIND - 1))
+
+show_error() {
+        echo $* >&2
+        echo "Use -h for help..."
+}
+
+log() {
+        if [[ "$VERBOSE" -eq 1 ]]; then
+                echo $*
+        fi
+}
+
+MIN_ARGS=2
+if [ $# -lt $MIN_ARGS ]; then
+        show_error "Not enough arguments! Expected $MIN_ARGS, got $#"
+        exit 2
+fi
+
+ROOT_DIR="$1"
+DATE_STR="$2"
+
+if [[ ! -d "$ROOT_DIR" ]]; then
+        show_error "Provided ROOT_DIR (\"$ROOT_DIR\") does not exist!"
+        exit 2
+fi
+log "Provided ROOT_DIR: $ROOT_DIR"
+
+if ! date -d "$DATE_STR" >/dev/null 2>&1; then
+    show_error "Invalid date!"
+    exit 2
+fi
+DATE=$(date -d "$DATE_STR" +%FT%T)
+log "Provided DATE: $DATE_STR"
+log "Parsed date: $DATE"
+
+shift 2
+COMMAND="$*"
+log "Provided COMMAND: $COMMAND"
+
+
+FIND_CMD=(find "$ROOT_DIR" -type d ! -newermt "$DATE")
+
+if [[ -n "$COMMAND" ]]; then
+  #FIND_CMD+=(-exec $COMMAND \;)
+  FIND_CMD+=(-exec bash -c "cd '{}' && $COMMAND" \;)
+fi
+
+log "Final command: ${FIND_CMD[*]}"
+"${FIND_CMD[@]}"