Better plugin and answer examples

chat/answer

@@ -1,21 +1,24 @@
 #!/bin/bash
 
-# simple chat bot
-# with sending images to an external program
-# and ignoring some nicknames
+# Simple chat bot
+# with sending images to an external programme.
 
 random() {
+    if (( "$1" < 1 )); then
+        echo '1'
+    else
         shuf -n1 -i "1-$1"
+    fi
 }
 
 cd "$(dirname "$0")"
 
-if grep -q -- "$1" "ignore"; then
-exit 0
+if (grep -q -- "$1" "ignore"); then
+    exit 0
 fi
 
-echo -n "$1: "
-from=$(echo "$1" | tr -d '$`|<>')
+printf "%s" "$1: "
+from=$(printf "%s\n" "$1" | tr -d '$`|<>')
 
 # Second argument shows whether user is an admin (useless).
 shift 2
@@ -31,22 +34,23 @@ if [[ "$string" == *http*://* ]]; then
     # Makes it a bit more human (time to find a link?).
     sleep 1
     sed -e '/https*:\/\//!d' ./frs.txt | sed -n "$(random "$amount")p"
-    img="$(echo "$string" | sed -ne 's|.*\(https*://[^ \"()<>]*\).*|\1|g;1p')"
-    ns="$(echo "$string" | sed -e "s|$img||g")"
-    cl="$(wget --spider -S $(eval echo '$img') 2>&1)"
-    if [[ $(echo "$cl" | sed -e '/Content-Type/!d;/image\//!d') ]]; then
+    img="$(printf "%s\n" "$string" | sed -ne 's|.*\(https*://[^ \"()<>]*\).*|\1|g;1p')"
+    ns="$(printf "%s\n" "$string" | sed -e "s|$img||g")"
+    cl="$(wget --spider -S $(eval printf '%s\n' '$img') 2>&1)"
+    if [[ $(printf "%s\n" "$cl" | sed -e '/Content-Type/!d;/image\//!d') ]]; then
         #echo 'posting'
-        #echo "$img" "$from" >> ~/data/pictures
+        printf "%s\n" "$img $from" >> ../data/pictures
     fi
 else
-    amount="$(sed -e '/https*:\/\//d' ./frs.txt | wc -l)"
+    # Exclude last two entries from the amount.
+    amount="$(($(sed -e '/https*:\/\//d' ./frs.txt | wc -l) - 2))"
     answer="$(sed -e '/https*:\/\//d' ./frs.txt | sed -ne "s/;;\\\n/\n/g;$(random "$amount")p")"
     # Makes it a bit more human.
-    sleep "$(echo "${#answer} * 0.1" | bc -l)"
-    echo "$answer"
+    sleep "$(echo "${#answer} * 0.15" | bc -l)"
+    printf "%s\n" "$answer"
 fi
 if [[ ${#string} -lt 7 ]]; then
     exit 0
 fi
-echo "$string" | sed -e '{:q;N;s/\n/;;\\n/g;t q}' >> ./frs.txt
+printf "%s\n" "$string" | sed -e '{:q;N;s/\n/;;\\n/g;t q}' >> ./frs.txt
 exit 0

chat/ignore

@@ -1,3 +0,0 @@
-bodqhrohro
-MiniRoboDancer
-kosc

plugins/example

@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/bin/sh
 
-user="$1" # nickname
-admin="$2" # if he is an admin
+user="$1"  # User nickname.
+admin="$2"  # If one is an admin.
 
 if [ "$admin" != 'true' ]; then
-  echo "$user: you are not an admin"
+    printf "%s\n" "$user: you are not an admin"
 else
-  echo "$user: you are an admin"
+    printf "%s\n" "$user: you are an admin"
 fi