remove old app files

Author: DingGuodong

projects/LinuxSystemOps/Filesystem/remove_old_app_files.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# remove old app files, not restrict, NO QA
+set -o errexit
+apps_dir="/opt/ebt/apps"
+current_pwd=$(pwd)
+if [[ ${current_pwd} != ${apps_dir} ]]; then
+    cd apps_dir
+fi
+app_list="
+appname1
+appname2
+appname3
+"
+
+current_app_list=$(ls -1 .)
+
+for app in ${app_list};do
+    if [[ ${current_app_list} =~ ${app} ]]; then # if echo "${strings}" | grep ${string}; then
+        app_count=$(ls -t . | grep ${app}| wc -l)
+        if [[ ${app_count} > 2 ]]; then
+            app_count=$(expr ${app_count} - 2 ) # app_count=$((app_count-2))
+        fi
+        echo "Found:$app, Old files count:$app_count"
+        ls -t . | grep ${app} | tail -${app_count} | xargs rm -rf
+    fi
+done