rc.local/no.sh

@@ -0,0 +1,47 @@
+# read stdin, grep out all words on the command line
+
+no() {
+    # Usage: no [grep_flags] "word1" "word2" ...
+    #
+    # Example usage:
+    # cat some_file.txt | no -i "word1" "word2"
+    #
+    #
+    # Insipred by Marcus Ranum's "Artificial Ignornace":
+    # https://www.ranum.com/security/computer_security/papers/ai/
+    #
+    # source this file to define the alias.
+
+    local words=()
+    local grep_flags=()
+
+    # Separate grep flags from words
+    while [ $# -gt 0 ]; do
+        case "$1" in
+            -*)
+                # Argument is a flag (starts with -)
+                grep_flags+=("$1")
+                shift
+                ;;
+            *)
+                # Argument is a word
+                words+=("$1")
+                shift
+                ;;
+        esac
+    done
+
+    # Construct a grep pattern that matches any of the given words
+    local grep_pattern=""
+    for word in "${words[@]}"; do
+        if [ -n "$grep_pattern" ]; then
+            grep_pattern="${grep_pattern}|${word}"
+        else
+            grep_pattern="${word}"
+        fi
+    done
+
+    # Use grep with specified flags to filter out lines that contain
+    # any of the specified words
+    grep "${grep_flags[@]}" -Ev "($grep_pattern)"
+}