{"id":353731,"date":"2024-08-23T07:01:40","date_gmt":"2024-08-23T07:01:40","guid":{"rendered":"https:\/\/www.ninjaone.com\/script-hub\/verificare-la-presenza-di-file-in-linux\/"},"modified":"2024-10-13T19:07:51","modified_gmt":"2024-10-13T19:07:51","slug":"verificare-la-presenza-di-file-in-linux","status":"publish","type":"script_hub","link":"https:\/\/www.ninjaone.com\/it\/script-hub\/verificare-la-presenza-di-file-in-linux\/","title":{"rendered":"Guida completa: come utilizzare uno script Linux per verificare la presenza di file o cartelle"},"content":{"rendered":"

Verificare la presenza di file e directory critici e la loro integrit\u00e0 \u00e8 fondamentale nella gestione IT. Che tu sia un professionista IT o un provider di servizi gestiti (MSP)<\/a>, tenere traccia dei file di sistema essenziali o delle directory di applicazioni specifiche pu\u00f2 aiutarti a mantenere la stabilit\u00e0, la sicurezza e la conformit\u00e0 del sistema. \u00c8 qui che entrano in gioco gli script di automazione, in particolare quello che pu\u00f2 verificare la presenza di file e avvisare se vengono trovati un file o una cartella specifica<\/strong> all’interno di una directory o sottodirectory.<\/p>\n

Background<\/h2>\n

Lo script per verificare la presenza di file o cartelle fornito offre una soluzione solida per la ricerca e l’invio di avvisi in base all’esistenza di file o cartelle all’interno di un percorso specificato. Questo tipo di automazione \u00e8 fondamentale in vari scenari, come la verifica del successo dell’implementazione, il monitoraggio delle modifiche non autorizzate o la garanzia della presenza di configurazioni critiche. Per i professionisti IT e gli MSP, l’utilizzo di script come questo pu\u00f2 migliorare l’efficienza operativa e ridurre le attivit\u00e0 di monitoraggio manuale.<\/p>\n

Lo script per verificare la presenza di file o cartelle<\/h2>\n
#!\/usr\/bin\/env bash\r\n\r\n# Description: Alert if a specified file or folder is found in a directory or subdirectory you specify.\r\n#\r\n# Release Notes: Initial Release\r\n# By using this script, you indicate your acceptance of the following legal terms as well as our Terms of Use at https:\/\/www.ninjaone.com\/terms-of-use.\r\n# Ownership Rights: NinjaOne owns and will continue to own all right, title, and interest in and to the script (including the copyright). NinjaOne is giving you a limited license to use the script in accordance with these legal terms. \r\n# Use Limitation: You may only use the script for your legitimate personal or internal business purposes, and you may not share the script with another party. \r\n# Republication Prohibition: Under no circumstances are you permitted to re-publish the script in any script library or website belonging to or under the control of any other software provider. \r\n# Warranty Disclaimer: The script is provided \u201cas is\u201d and \u201cas available\u201d, without warranty of any kind. NinjaOne makes no promise or guarantee that the script will be free from defects or that it will meet your specific needs or expectations. \r\n# Assumption of Risk: Your use of the script is at your own risk. You acknowledge that there are certain inherent risks in using the script, and you understand and assume each of those risks. \r\n# Waiver and Release: You will not hold NinjaOne responsible for any adverse or unintended consequences resulting from your use of the script, and you waive any legal or equitable rights or remedies you may have against NinjaOne relating to your use of the script. \r\n# EULA: If you are a NinjaOne customer, your use of the script is subject to the End User License Agreement applicable to you (EULA).\r\n#\r\n# Below are all the (case sensitive) valid parameters for this script.\r\n# Only the path to search and name of file or folder are required!\r\n#\r\n# Parameter: --path \"\/opt\/NinjaRMM\/programdata\"\r\n#   Required\r\n#   Base path to search for files or folders.\r\n#\r\n# Parameter: --name \"ninjarmm-cli\"\r\n#   Required\r\n#   Name of the file or folder to search for.\r\n#   Notes:\r\n#       If the name is not provided, the script will search for the path only.\r\n#       This is case sensitive and accepts wildcards.\r\n#\r\n# Parameter: --type \"Files Or Folders\"\r\n#   Required\r\n#   Search for files or folders.\r\n#\r\n# Parameter: --type \"Files Only\"\r\n#   Required\r\n#   Searches for files only.\r\n#\r\n# Parameter: --type \"Folders Only\"\r\n#   Required\r\n#   Searches for folder only.\r\n#\r\n# Parameter: --timeout 10\r\n#   Optional and defaults to 30 minutes\r\n#   Time in minutes to wait for the search to complete before timing out.\r\n#\r\n# Parameter: --customfield \"myCustomField\"\r\n#   Optional\r\n#   Custom Field to save the search results to.\r\n\r\ndie() {\r\n    local _ret=\"${2:-1}\"\r\n    test \"${_PRINT_HELP:-no}\" = yes && print_help >&2\r\n    echo \"$1\" >&2\r\n    exit \"${_ret}\"\r\n}\r\n\r\nbegins_with_short_option() {\r\n    local first_option all_short_options='h'\r\n    first_option=\"${1:0:1}\"\r\n    test \"$all_short_options\" = \"${all_short_options\/$first_option\/}\" && return 1 || return 0\r\n}\r\n\r\n# Initize arguments\r\n_arg_path=\r\n_arg_name=\r\n_arg_type=\r\n_arg_timeout=30\r\n_arg_customfield=\r\n\r\nprint_help() {\r\n    printf '%s\\n' \"Check existence of a file or folder\"\r\n    printf 'Usage: %s [--path <arg>] [--name <arg>] [--type <\"Files Only\"|\"Folders Only\"|\"Files Or Folders\">] [--timeout <30>] [--customfield <arg>] [-h|--help]\\n' \"$0\"\r\n    printf '\\t%s\\n' \"-h, --help: Prints help\"\r\n}\r\n\r\nparse_commandline() {\r\n    while test $# -gt 0; do\r\n        _key=\"$1\"\r\n        case \"$_key\" in\r\n        --path)\r\n            test $# -lt 2 && die \"Missing value for the optional argument '$_key'.\" 1\r\n            _arg_path=\"$2\"\r\n            shift\r\n            ;;\r\n        --path=*)\r\n            _arg_path=\"${_key##--path=}\"\r\n            ;;\r\n        --name)\r\n            test $# -lt 2 && die \"Missing value for the optional argument '$_key'.\" 1\r\n            _arg_name=\"$2\"\r\n            shift\r\n            ;;\r\n        --name=*)\r\n            _arg_name=\"${_key##--name=}\"\r\n            ;;\r\n        --type)\r\n            test $# -lt 2 && die \"Missing value for the optional argument '$_key'.\" 1\r\n            _arg_type=\"$2\"\r\n            shift\r\n            ;;\r\n        --type=*)\r\n            _arg_type=\"${_key##--type=}\"\r\n            ;;\r\n        --timeout)\r\n            test $# -lt 2 && die \"Missing value for the optional argument '$_key'.\" 1\r\n            _arg_timeout=\"$2\"\r\n            shift\r\n            ;;\r\n        --timeout=*)\r\n            _arg_timeout=\"${_key##--timeout=}\"\r\n            ;;\r\n        --customfield)\r\n            test $# -lt 2 && die \"Missing value for the optional argument '$_key'.\" 1\r\n            _arg_customfield=\"$2\"\r\n            shift\r\n            ;;\r\n        --customfield=*)\r\n            _arg_customfield=\"${_key##--customfield=}\"\r\n            ;;\r\n        -h | --help)\r\n            print_help\r\n            exit 0\r\n            ;;\r\n        -h*)\r\n            print_help\r\n            exit 0\r\n            ;;\r\n        *)\r\n            _PRINT_HELP=yes die \"FATAL ERROR: Got an unexpected argument '$1'\" 1\r\n            ;;\r\n        esac\r\n        shift\r\n    done\r\n}\r\n\r\nparse_commandline \"$@\"\r\n\r\nfunction SetCustomField() {\r\n    customfieldName=$1\r\n    customfieldValue=$2\r\n    if [ -f \"${NINJA_DATA_PATH}\/ninjarmm-cli\" ]; then\r\n        if [ -x \"${NINJA_DATA_PATH}\/ninjarmm-cli\" ]; then\r\n            if \"$NINJA_DATA_PATH\"\/ninjarmm-cli get \"$customfieldName\" >\/dev\/null; then\r\n                # check if the value is greater than 10000 characters\r\n                if [ ${#customfieldValue} -gt 10000 ]; then\r\n                    echo \"[Warn] Custom field value is greater than 10000 characters\"\r\n                fi\r\n                if ! echo \"${customfieldValue::10000}\" | \"$NINJA_DATA_PATH\"\/ninjarmm-cli set --stdin \"$customfieldName\"; then\r\n                    echo \"[Warn] Failed to set custom field\"\r\n                else\r\n                    echo \"[Info] Custom field value set successfully\"\r\n                fi\r\n            else\r\n                echo \"[Warn] Custom Field ($customfieldName) does not exist or agent does not have permission to access it\"\r\n            fi\r\n        else\r\n            echo \"[Warn] ninjarmm-cli is not executable\"\r\n        fi\r\n    else\r\n        echo \"[Warn] ninjarmm-cli does not exist\"\r\n    fi\r\n}\r\n\r\nparentSearchPath=$_arg_path\r\nleafSearchName=$_arg_name\r\nsearchType=$_arg_type\r\ntimeout=$_arg_timeout\r\ncustomField=$_arg_customfield\r\n\r\n# Get values from Script Variables\r\nif [[ -n \"${pathToSearch}\" ]]; then\r\n    parentSearchPath=\"${pathToSearch}\"\r\nfi\r\nif [[ -n \"${nameOfFileOrFolder}\" ]]; then\r\n    leafSearchName=\"${nameOfFileOrFolder}\"\r\nfi\r\nif [[ -n \"${filesOrFolders}\" && \"${filesOrFolders}\" != \"null\" ]]; then\r\n    searchType=\"${filesOrFolders}\"\r\nfi\r\nif [[ -n \"${searchTimeout}\" && \"${searchTimeout}\" != \"null\" ]]; then\r\n    timeout=\"${searchTimeout}\"\r\nfi\r\nif [[ -n \"${customFieldName}\" && \"${customFieldName}\" != \"null\" ]]; then\r\n    customField=\"${customFieldName}\"\r\nfi\r\n\r\nif [[ -z \"${parentSearchPath}\" ]]; then\r\n    echo \"[Error] Path to Search is empty\"\r\n    exit 1\r\nfi\r\n\r\n# Check if path exists\r\nif [ -e \"${parentSearchPath}\" ]; then\r\n    echo \"[Info] Path ${parentSearchPath} exists\"\r\nelse\r\n    echo \"[Error] Path to Search ${parentSearchPath} does not exist or is an invalid path\"\r\n    exit 1\r\nfi\r\n\r\n# Check if timeout is a number\r\nif ! [[ \"${timeout}\" =~ ^[0-9]+$ ]]; then\r\n    echo \"[Error] Timeout is not a number\"\r\n    exit 1\r\nfi\r\n# Check if timeout is not in the range of 1 to 120\r\nif [[ \"${timeout}\" -lt 1 || \"${timeout}\" -gt 120 ]]; then\r\n    echo \"[Error] Timeout is not in the range of 1 to 120\"\r\n    exit 1\r\nfi\r\n\r\n# Search for files or folders\r\nif [[ -n \"${leafSearchName}\" && \"${leafSearchName}\" != \"null\" ]]; then\r\n    if [[ \"${searchType}\" == *\"Files\"* && \"${searchType}\" == *\"Only\"* ]]; then\r\n        echo \"[Info] Searching for files only\"\r\n        # Search for files only\r\n        # Use timeout to prevent the find command from running indefinitely\r\n        foundPath=$(timeout \"${timeout}m\" find \"$parentSearchPath\" -type f -name \"$leafSearchName\" 2>\/dev\/null)\r\n        exitcode=$?\r\n        if [[ $exitcode -eq 0 || $exitcode -eq 124 ]]; then\r\n            if [[ -n $foundPath ]]; then\r\n                echo \"[Alert] File Found\"\r\n            fi\r\n        fi\r\n    elif [[ \"${searchType}\" == *\"Folders\"* && \"${searchType}\" == *\"Only\"* ]]; then\r\n        echo \"[Info] Searching for folders only\"\r\n        # Search for folders only\r\n        # Use timeout to prevent the find command from running indefinitely\r\n        foundPath=$(timeout \"${timeout}m\" find \"$parentSearchPath\" -type d -name \"$leafSearchName\" 2>\/dev\/null)\r\n        exitcode=$?\r\n        if [[ $exitcode -eq 0 || $exitcode -eq 124 ]]; then\r\n            if [[ -n $foundPath ]]; then\r\n                echo \"[Alert] File Found\"\r\n            fi\r\n        fi\r\n    elif [[ \"${searchType}\" == *\"Files\"* && \"${searchType}\" == *\"Folders\"* ]]; then\r\n        echo \"[Info] Searching for files or folders\"\r\n        # Search for files or folders\r\n        # Use timeout to prevent the find command from running indefinitely\r\n        foundPath=$(timeout \"${timeout}m\" find \"$parentSearchPath\" -name \"$leafSearchName\" 2>\/dev\/null)\r\n        exitcode=$?\r\n        if [[ $exitcode -eq 0 || $exitcode -eq 124 ]]; then\r\n            if [[ -n $foundPath ]]; then\r\n                echo \"[Alert] File Found\"\r\n            fi\r\n        fi\r\n    else\r\n        echo \"[Error] Invalid search type\"\r\n        echo \"Valid search types: Files Only, Folders Only, Files Or Folders\"\r\n        exit 1\r\n    fi\r\nelif [[ -z \"${leafSearchName}\" ]]; then\r\n    # Search in path only\r\n    echo \"[Info] Searching in path only\"\r\n    # Search in path only\r\n    # Use timeout to prevent the find command from running indefinitely\r\n    foundPath=$(timeout \"${timeout}m\" find \"$parentSearchPath\")\r\n    exitcode=$?\r\n    if [[ $exitcode -eq 0 || $exitcode -eq 124 ]]; then\r\n        if [[ -n $foundPath ]]; then\r\n            echo \"[Alert] File Found\"\r\n        fi\r\n    fi\r\nfi\r\n\r\n# Check exit code\r\nif [[ -n $foundPath ]]; then\r\n    if [[ -n \"${foundPath}\" ]]; then\r\n        # Split the string into an array\r\n        IFS=$'\\n' read -rd '' -a foundPathArray <<<\"${foundPath}\"\r\n        # Print each element of the array\r\n        for element in \"${foundPathArray[@]}\"; do\r\n            echo \"[Alert] ${element} exists\"\r\n        done\r\n    elif [[ -z \"${foundPath}\" ]]; then\r\n        echo \"[Info] ${foundPath} does not exist\"\r\n    fi\r\nelif [[ -z $foundPath ]]; then\r\n    echo \"[Warn] Could not find a file or folder\"\r\n    exit 1\r\nelse\r\n    # If the find command fails to find the file or folder\r\n\r\n    # Figure out the grammer for the search type\r\n    if [[ \"${searchType}\" == *\"Only\"* ]]; then\r\n        if [[ \"${searchType}\" == *\"Files\"* ]]; then\r\n            searchTypeInfo=\"file\"\r\n        elif [[ \"${searchType}\" == *\"Folders\"* ]]; then\r\n            searchTypeInfo=\"folder\"\r\n        fi\r\n    elif [[ \"${searchType}\" == *\"Files\"* && \"${searchType}\" == *\"Folders\"* ]]; then\r\n        searchTypeInfo=\"file or folder\"\r\n    fi\r\n    echo \"[Info] Could not find a ${searchTypeInfo} in the path ${parentSearchPath} with the name containing: ${leafSearchName}\"\r\nfi\r\n\r\n# If command times out\r\nif [[ $exitcode -ge 124 && $exitcode -le 127 || $exitcode -eq 137 ]]; then\r\n    echo \"[Alert] Timed out searching for file or folder\"\r\n    echo \"timeout exit code: $exitcode\"\r\n    echo \"  124  if COMMAND times out, and --preserve-status is not specified\"\r\n    echo \"  125  if the timeout command itself fails\"\r\n    echo \"  126  if COMMAND is found but cannot be invoked\"\r\n    echo \"  127  if COMMAND cannot be found\"\r\n    echo \"  137  if COMMAND (or timeout itself) is sent the KILL (9) signal (128+9)\"\r\n    echo \"find command result: $foundPath\"\r\n    exit 1\r\nfi\r\n\r\n# Save to custom field\r\nif [[ -n \"${customField}\" && \"${customField}\" != \"null\" ]]; then\r\n    SetCustomField \"${customField}\" \"${foundPath}\"\r\nfi<\/pre>\n
 <\/p>\n\n
<\/div>\n
Analisi dettagliata<\/h2>\n
Analizziamo lo script per verificare la presenza di file o cartelle per comprenderne il funzionamento, i parametri e le funzionalit\u00e0:<\/p>\n
Parametri e opzioni<\/h3>\n
Lo script per verificare la presenza di file o cartelle accetta diversi parametri per personalizzare l’operazione di ricerca:<\/p>\n