make script more reliable

bash_tools.sh

@@ -5,22 +5,22 @@
 # If no argument supplied, the host machine's ip will
 # be used
 # doc for api: https://ip-api.com/docs/api
-ipinfo(){
-    api_str=http://ip-api.com/json/$1?fields=query,country,regionName,city,district,zip,isp,org,reverse,mobile,proxy,hosting
+function ipinfo(){
+    local api_str="http://ip-api.com/json/$1?fields=query,country,regionName,city,district,zip,isp,org,reverse,mobile,proxy,hosting"
     if ! hash python; then
-        curl $api_str
+        curl "$api_str"
     else
-        curl -s $api_str | python -m json.tool
+        curl -s "$api_str" | python -m json.tool
     fi
 }
 
 # find file contain certain text string($2) in certain directory($1)
-fct(){
+function fct(){
     grep -rnw $1 -e $2
 }
 
 # online directory
-odict(){
+function odict(){
    curl dict://dict.org/d:"${1}"
 }
 

bash_tools/fzf_file_seletor.sh

@@ -23,7 +23,7 @@ cd \
 )
 
 # in case above functions are broken
-no_fzf(){
+function no_fzf(){
     for c in "${fzf_command_list_all[@]}"; do
         unalias $c
     done
@@ -35,7 +35,7 @@ no_fzf(){
     done
 }
 
-dp(){
+function dp(){
     local debug=0
     [ "$debug" = "1" ] && echo $1
 }
@@ -78,7 +78,7 @@ ret=''
 #   0: show all
 #   1: only show directories
 #   2: only show files
-fzf_selector() {
+function fzf_selector() {
     ret=$1
     if [ "$1" = "." ] || [ "$1" = ".." ] || \
        [[ "$1" == -* ]] || [[ "$1" == */* ]]; then
@@ -130,7 +130,7 @@ fzf_selector() {
 # $1 command for fzf substuting(like ls)
 # $2 original args pass to function
 # $3 command require file type (file: 0 |directory: 1)
-fzf_command_execute() {
+function fzf_command_execute() {
     local args=($@)
     local len=${#args[@]}