{"id":89166,"date":"2026-08-02T15:16:30","date_gmt":"2026-08-02T07:16:30","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/89166.html"},"modified":"2026-08-02T15:16:30","modified_gmt":"2026-08-02T07:16:30","slug":"linux%e5%91%bd%e4%bb%a4%e4%b8%8e%e8%87%aa%e5%8a%a8%e5%8c%96%e8%84%9a%e6%9c%ac%e7%b2%be%e5%8d%8e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/89166.html","title":{"rendered":"Linux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u7cbe\u534e"},"content":{"rendered":"

Linux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u6838\u5fc3\u6307\u5357<\/h3>\n

\u4e00\u3001\u6838\u5fc3Linux\u547d\u4ee4\u901f\u67e5\u8868<\/h4>\n\n\u7c7b\u522b\u547d\u4ee4\u529f\u80fd\u63cf\u8ff0\u5e38\u7528\u793a\u4f8b<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6587\u4ef6\u4e0e\u76ee\u5f55<\/td>\nls<\/td>\n\u5217\u51fa\u76ee\u5f55\u5185\u5bb9<\/td>\nls -la (\u8be6\u7ec6\u5217\u8868)<\/td>\n<\/tr>\n
\u00a0<\/td>\npwd<\/td>\n\u663e\u793a\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55<\/td>\npwd<\/td>\n<\/tr>\n
\u00a0<\/td>\ncd<\/td>\n\u5207\u6362\u76ee\u5f55<\/td>\ncd \/home\/user<\/td>\n<\/tr>\n
\u00a0<\/td>\nmkdir<\/td>\n\u521b\u5efa\u76ee\u5f55<\/td>\nmkdir -p project\/{src,bin} (\u521b\u5efa\u591a\u7ea7\u76ee\u5f55)<\/td>\n<\/tr>\n
\u00a0<\/td>\nrm<\/td>\n\u5220\u9664\u6587\u4ef6\u6216\u76ee\u5f55<\/td>\nrm -rf old_dir\/ (\u5f3a\u5236\u9012\u5f52\u5220\u9664)<\/td>\n<\/tr>\n
\u00a0<\/td>\ncp<\/td>\n\u590d\u5236<\/td>\ncp -r source\/ dest\/ (\u9012\u5f52\u590d\u5236\u76ee\u5f55)<\/td>\n<\/tr>\n
\u00a0<\/td>\nmv<\/td>\n\u79fb\u52a8\/\u91cd\u547d\u540d<\/td>\nmv old.txt new.txt<\/td>\n<\/tr>\n
\u00a0<\/td>\nfind<\/td>\n\u67e5\u627e\u6587\u4ef6<\/td>\nfind . -name "*.log" -mtime +7 (\u67e5\u627e7\u5929\u524d\u7684\u65e5\u5fd7)<\/td>\n<\/tr>\n
\u6587\u4ef6\u5185\u5bb9<\/td>\ncat<\/td>\n\u67e5\u770b\u6587\u4ef6\u5168\u90e8\u5185\u5bb9<\/td>\ncat config.yaml<\/td>\n<\/tr>\n
\u00a0<\/td>\nhead \/ tail<\/td>\n\u67e5\u770b\u6587\u4ef6\u5934\/\u5c3e<\/td>\ntail -f app.log (\u5b9e\u65f6\u8ffd\u8e2a\u65e5\u5fd7)<\/td>\n<\/tr>\n
\u00a0<\/td>\ngrep<\/td>\n\u6587\u672c\u641c\u7d22<\/td>\ngrep -r "ERROR" \/var\/log\/ (\u9012\u5f52\u641c\u7d22)<\/td>\n<\/tr>\n
\u00a0<\/td>\nsed<\/td>\n\u6d41\u7f16\u8f91\u5668 (\u975e\u4ea4\u4e92\u5f0f\u7f16\u8f91)<\/td>\nsed -i 's\/foo\/bar\/g' file.txt (\u5168\u5c40\u66ff\u6362)<\/td>\n<\/tr>\n
\u00a0<\/td>\nawk<\/td>\n\u6587\u672c\u5206\u6790\u5904\u7406<\/td>\nawk '{print $1}' data.csv (\u6253\u5370\u7b2c\u4e00\u5217)<\/td>\n<\/tr>\n
\u7cfb\u7edf\u4fe1\u606f<\/td>\nps<\/td>\n\u67e5\u770b\u8fdb\u7a0b\u72b6\u6001<\/td>\nps aux | grep nginx<\/td>\n<\/tr>\n
\u00a0<\/td>\ntop \/ htop<\/td>\n\u52a8\u6001\u67e5\u770b\u8fdb\u7a0b\/\u8d44\u6e90<\/td>\ntop<\/td>\n<\/tr>\n
\u00a0<\/td>\ndf \/ du<\/td>\n\u78c1\u76d8\u7a7a\u95f4\u4f7f\u7528<\/td>\ndf -h (\u4eba\u7c7b\u53ef\u8bfb\u683c\u5f0f)<\/td>\n<\/tr>\n
\u00a0<\/td>\nfree<\/td>\n\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/td>\nfree -m (\u4ee5MB\u663e\u793a)<\/td>\n<\/tr>\n
\u00a0<\/td>\nifconfig \/ ip<\/td>\n\u7f51\u7edc\u63a5\u53e3\u914d\u7f6e<\/td>\nifconfig eth0<\/td>\n<\/tr>\n
\u6743\u9650\u7ba1\u7406<\/td>\nchmod<\/td>\n\u4fee\u6539\u6587\u4ef6\u6743\u9650<\/td>\nchmod +x script.sh (\u6dfb\u52a0\u6267\u884c\u6743\u9650)<\/td>\n<\/tr>\n
\u00a0<\/td>\nchown<\/td>\n\u4fee\u6539\u6587\u4ef6\u6240\u6709\u8005<\/td>\nchown user:group file<\/td>\n<\/tr>\n
\u538b\u7f29\/\u6253\u5305<\/td>\ntar<\/td>\n\u6253\u5305\u4e0e\u538b\u7f29<\/td>\ntar -czvf archive.tar.gz dir\/ (\u521b\u5efagzip\u538b\u7f29\u5305)<\/td>\n<\/tr>\n
\u00a0<\/td>\ngzip \/ gunzip<\/td>\n\u538b\u7f29\/\u89e3\u538b .gz \u6587\u4ef6<\/td>\ngzip file<\/td>\n<\/tr>\n
\u7f51\u7edc\u64cd\u4f5c<\/td>\nssh<\/td>\n\u5b89\u5168\u8fdc\u7a0b\u767b\u5f55<\/td>\nssh user@hostname<\/td>\n<\/tr>\n
\u00a0<\/td>\nscp<\/td>\n\u5b89\u5168\u8fdc\u7a0b\u590d\u5236<\/td>\nscp file.txt user@remote:\/path\/<\/td>\n<\/tr>\n
\u00a0<\/td>\nwget \/ curl<\/td>\n\u7f51\u7edc\u4e0b\u8f7d<\/td>\ncurl -O http:\/\/example.com\/file<\/td>\n<\/tr>\n
\u8fdb\u7a0b\u7ba1\u7406<\/td>\nkill<\/td>\n\u7ec8\u6b62\u8fdb\u7a0b<\/td>\nkill -9 1234 (\u5f3a\u5236\u7ec8\u6b62PID 1234)<\/td>\n<\/tr>\n
\u00a0<\/td>\nnohup & &<\/td>\n\u540e\u53f0\u8fd0\u884c\u8fdb\u7a0b<\/td>\nnohup .\/server.sh &<\/td>\n<\/tr>\n
\u5176\u4ed6\u5b9e\u7528<\/td>\nalias<\/td>\n\u547d\u4ee4\u522b\u540d<\/td>\nalias ll='ls -l'<\/td>\n<\/tr>\n
\u00a0<\/td>\nhistory<\/td>\n\u67e5\u770b\u547d\u4ee4\u5386\u53f2<\/td>\nhistory | grep ssh<\/td>\n<\/tr>\n
\u00a0<\/td>\nman \/ –help<\/td>\n\u67e5\u770b\u547d\u4ee4\u624b\u518c\/\u5e2e\u52a9<\/td>\nman grep<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\u3001Shell\u811a\u672c\u81ea\u52a8\u5316\u7f16\u7a0b\u6838\u5fc3<\/h4>\n

1. \u811a\u672c\u57fa\u7840\u7ed3\u6784<\/p>\n

\u6240\u6709Shell\u811a\u672c\u5e94\u4ee5 #!\/bin\/bash (\u6216 #!\/bin\/sh) \u5f00\u5934，\u6307\u5b9a\u89e3\u91ca\u5668 \u3002<\/p>\n

#!\/bin\/bash
\n# \u8fd9\u662f\u4e00\u4e2a\u81ea\u52a8\u5316\u5907\u4efd\u811a\u672c\u793a\u4f8b
\n# \u4f5c\u8005: SysAdmin
\n# \u63cf\u8ff0: \u5907\u4efd\u6307\u5b9a\u76ee\u5f55\u5230\u8fdc\u7a0b\u670d\u52a1\u5668<\/p>\n

# 1. \u5b9a\u4e49\u53d8\u91cf
\nBACKUP_SRC="\/home\/user\/data"
\nBACKUP_DEST="user@backup-server:\/backups\/"
\nLOG_FILE="\/var\/log\/backup_$(date +%Y%m%d).log"
\nMAX_DAYS=30<\/p>\n

# 2. \u68c0\u67e5\u6e90\u76ee\u5f55\u662f\u5426\u5b58\u5728
\nif [[ ! -d "$BACKUP_SRC" ]]; then echo "[ERROR] \u6e90\u76ee\u5f55 $BACKUP_SRC \u4e0d\u5b58\u5728!" | tee -a "$LOG_FILE"
\n exit 1
\nfi<\/p>\n

# 3. \u6267\u884c\u5907\u4efd\u6838\u5fc3\u903b\u8f91
\necho "===\u5f00\u59cb\u5907\u4efd $(date) ===" >> "$LOG_FILE"
\ntar -czf – "$BACKUP_SRC" 2>> "$LOG_FILE" | \\\\
\n ssh "$BACKUP_DEST" "cat > backup_$(date +%Y%m%d_%H%M%S).tar.gz"<\/p>\n

# 4. \u68c0\u67e5\u547d\u4ee4\u6267\u884c\u72b6\u6001
\nif [[ $? -eq 0 ]]; then
\n echo "[SUCCESS] \u5907\u4efd\u5b8c\u6210\u4e8e $(date)" >> "$LOG_FILE"
\nelse echo "[FAILED] \u5907\u4efd\u5931\u8d25，\u8bf7\u68c0\u67e5\u65e5\u5fd7!" >> "$LOG_FILE"
\n exit 1
\nfi<\/p>\n

# 5. \u6e05\u7406\u65e7\u65e5\u5fd7 (\u8d85\u8fc730\u5929)
\nfind \/var\/log\/ -name "backup_*.log" -mtime +$MAX_DAYS -delete<\/p>\n

exit 0<\/p>\n

2. \u5173\u952e\u8bed\u6cd5\u4e0e\u6280\u5de7<\/p>\n

\u53d8\u91cf\u4e0e\u53c2\u6570\u5904\u7406<\/p>\n

#!\/bin\/bash
\n# \u53d8\u91cf\u5b9a\u4e49\u4e0e\u4f7f\u7528
\nSCRIPT_NAME="$0" # \u811a\u672c\u540d
\nFIRST_ARG="$1" # \u7b2c\u4e00\u4e2a\u53c2\u6570
\nALL_ARGS="$@" # \u6240\u6709\u53c2\u6570\u6570\u7ec4
\nARG_COUNT="$#" # \u53c2\u6570\u4e2a\u6570
\nLAST_EXIT_CODE="$?" # \u4e0a\u6761\u547d\u4ee4\u9000\u51fa\u7801 <\/p>\n

# \u5b57\u7b26\u4e32\u64cd\u4f5c
\nfilename="app_20250115.log"
\necho "${filename%.*}" # \u8f93\u51fa: app_20250115 (\u79fb\u9664\u540e\u7f00)
\necho "${filename##*.}" # \u8f93\u51fa: log (\u83b7\u53d6\u540e\u7f00)
\necho "${filename:4:8}" # \u8f93\u51fa: 20250115 (\u5b50\u4e32) <\/p>\n

# \u6570\u7ec4\u64cd\u4f5c
\nfiles=("file1.txt" "file2.txt" "file3.txt")
\necho "\u6587\u4ef6\u6570: ${#files[@]}" # \u8f93\u51fa\u6570\u7ec4\u957f\u5ea6
\necho "\u7b2c\u4e00\u4e2a\u6587\u4ef6: ${files[0]}" # \u8bbf\u95ee\u5143\u7d20 <\/p>\n

\u6761\u4ef6\u5224\u65ad\u4e0e\u5faa\u73af<\/p>\n

#!\/bin\/bash
\n# \u6570\u503c\u6bd4\u8f83
\nif [[ $COUNT -gt 10 ]]; then echo "\u6570\u91cf\u5927\u4e8e10"
\nelif [[ $COUNT -eq 0 ]]; then echo "\u6570\u91cf\u4e3a0"
\nelse
\n echo "\u6570\u91cf\u57281-10\u4e4b\u95f4"
\nfi<\/p>\n

# \u6587\u4ef6\/\u76ee\u5f55\u5224\u65ad
\nif [[ -f "\/etc\/passwd" ]]; then
\n echo "\u662f\u666e\u901a\u6587\u4ef6"
\nfi
\nif [[ -d "\/var\/log" ]]; then echo "\u662f\u76ee\u5f55"
\nfi<\/p>\n

# for\u5faa\u73af\u5904\u7406\u6587\u4ef6
\nfor file in *.txt; do if [[ -f "$file" ]]; then
\n echo "\u5904\u7406\u6587\u4ef6: $file"
\n # \u5728\u6b64\u6dfb\u52a0\u5904\u7406\u903b\u8f91，\u5982 sed\u66ff\u6362
\n sed -i 's\/old\/new\/g' "$file"
\n fi
\ndone<\/p>\n

# while\u5faa\u73af\u8bfb\u53d6\u6587\u4ef6\u884c
\nwhile IFS= read -r line; do echo "\u884c\u5185\u5bb9: $line"
\ndone < "input.txt"<\/p>\n

\u51fd\u6570\u5b9a\u4e49\u4e0e\u4f7f\u7528<\/p>\n

#!\/bin\/bash
\n# \u5b9a\u4e49\u51fd\u6570
\nlog_message() {
\n local level="$1"
\n local msg="$2"
\n echo "[$(date '+%Y-%m-%d %H:%M:%S')] [$level] $msg" >> "\/var\/log\/script.log"
\n}<\/p>\n

# \u5e26\u8fd4\u56de\u503c\u7684\u51fd\u6570
\ncheck_disk_usage() {
\n local usage=$(df -h \/ | awk 'NR==2 {print $5}' | sed 's\/%\/\/')
\n echo $usage # \u901a\u8fc7echo\u8fd4\u56de\u503c，\u800c\u975ereturn (return\u53ea\u80fd0-255)
\n}<\/p>\n

# \u8c03\u7528\u51fd\u6570
\nlog_message "INFO" "\u811a\u672c\u5f00\u59cb\u6267\u884c"
\ncurrent_usage=$(check_disk_usage)<\/p>\n

if [[ $current_usage -gt 90 ]]; then log_message "ERROR" "\u78c1\u76d8\u4f7f\u7528\u7387\u8d85\u8fc790%: ${current_usage}%"
\n # \u53d1\u9001\u8b66\u62a5\u90ae\u4ef6\u7b49\u64cd\u4f5c
\nfi<\/p>\n

3. \u81ea\u52a8\u5316\u4efb\u52a1\u793a\u4f8b<\/p>\n

\u793a\u4f8b1：\u7cfb\u7edf\u76d1\u63a7\u4e0e\u544a\u8b66\u811a\u672c<\/p>\n

#!\/bin\/bash
\n# monitor_system.sh \u76d1\u63a7CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u5e76\u53d1\u9001\u544a\u8b66<\/p>\n

THRESHOLD_CPU=80
\nTHRESHOLD_MEM=85
\nTHRESHOLD_DISK=90ALERT_EMAIL="admin@example.com"<\/p>\n

# \u83b7\u53d6\u7cfb\u7edf\u6307\u6807
\ncpu_usage=$(top -bn1 | grep "Cpu(s)" | awk '{print $2}' | cut -d'%' -f1)
\nmem_usage=$(free | grep Mem | awk '{printf "%.0f", $3\/$2 * 100}')
\ndisk_usage=$(df -h \/ | awk 'NR==2 {print $5}' | sed 's\/%\/\/')<\/p>\n

# \u68c0\u67e5\u5e76\u544a\u8b66
\nalerts=""
\nif [[ $cpu_usage -gt $THRESHOLD_CPU ]]; then alerts+="CPU\u4f7f\u7528\u7387\u8fc7\u9ad8: ${cpu_usage}%
\n"
\nfi
\nif [[ $mem_usage -gt $THRESHOLD_MEM ]]; then alerts+="\u5185\u5b58\u4f7f\u7528\u7387\u8fc7\u9ad8: ${mem_usage}%
\n"
\nfi
\nif [[ $disk_usage -gt $THRESHOLD_DISK ]]; then alerts+="\u78c1\u76d8\u4f7f\u7528\u7387\u8fc7\u9ad8: ${disk_usage}%
\n"
\nfi<\/p>\n

# \u5982\u679c\u6709\u544a\u8b66\u5219\u53d1\u9001
\nif [[ -n "$alerts" ]]; then echo -e "\u7cfb\u7edf\u544a\u8b66:
\n$alerts" | mail -s "\u7cfb\u7edf\u76d1\u63a7\u544a\u8b66 $(date)" "$ALERT_EMAIL"
\n echo "$(date): \u53d1\u9001\u544a\u8b66" >> \/var\/log\/monitor.log
\nfi<\/p>\n

\u793a\u4f8b2：\u81ea\u52a8\u5316\u65e5\u5fd7\u6e05\u7406<\/p>\n

#!\/bin\/bash
\n# clean_logs.sh\u81ea\u52a8\u6e05\u7406\u8fc7\u671f\u65e5\u5fd7\u6587\u4ef6<\/p>\n

LOG_DIRS=("\/var\/log" "\/opt\/app\/logs")
\nRETENTION_DAYS=30BACKUP_DIR="\/backup\/logs\/$(date +%Y%m)"<\/p>\n

# \u521b\u5efa\u5907\u4efd\u76ee\u5f55
\nmkdir -p "$BACKUP_DIR"<\/p>\n

for dir in "${LOG_DIRS[@]}"; do if [[ -d "$dir" ]]; then
\n echo "\u5904\u7406\u76ee\u5f55: $dir"<\/p>\n

# \u538b\u7f29\u5e76\u5907\u4efd7\u5929\u524d\u7684\u65e5\u5fd7 find "$dir" -name "*.log" -mtime +7 -exec tar -czf "$BACKUP_DIR\/$(basename $dir)_$(date +%Y%m%d).tar.gz" {} +
\n # \u5220\u966430\u5929\u524d\u7684\u65e5\u5fd7
\n find "$dir" -name "*.log" -mtime +$RETENTION_DAYS -delete # \u5220\u9664\u7a7a\u65e5\u5fd7\u6587\u4ef6
\n find "$dir" -name "*.log" -size 0 -delete
\n fi
\ndoneecho "\u65e5\u5fd7\u6e05\u7406\u5b8c\u6210\u4e8e $(date)" >> \/var\/log\/cleanup.log<\/p>\n

\u793a\u4f8b3：\u591a\u670d\u52a1\u5668\u6279\u91cf\u64cd\u4f5c<\/p>\n

#!\/bin\/bash
\n# batch_deploy.sh\u6279\u91cf\u90e8\u7f72\u5230\u591a\u53f0\u670d\u52a1\u5668<\/p>\n

SERVERS=("server1.example.com" "server2.example.com" "192.168.1.100")
\nSSH_USER="deploy"
\nSCRIPT_FILE="deploy_app.sh"
\nREMOTE_DIR="\/opt\/app\/"<\/p>\n

for server in "${SERVERS[@]}"; do echo "\u6b63\u5728\u90e8\u7f72\u5230 $server …"<\/p>\n

# \u68c0\u67e5\u670d\u52a1\u5668\u8fde\u901a\u6027 if ! ping -c 1 -W 2 "$server" &> \/dev\/null; then
\n echo " [\u8df3\u8fc7] $server \u65e0\u6cd5\u8fde\u63a5"
\n continue
\n fi # \u590d\u5236\u90e8\u7f72\u811a\u672c
\n scp "$SCRIPT_FILE" "${SSH_USER}@${server}:${REMOTE_DIR}"
\n # \u8fdc\u7a0b\u6267\u884c\u90e8\u7f72 ssh "${SSH_USER}@${server}" "cd ${REMOTE_DIR} && chmod +x ${SCRIPT_FILE} && .\/${SCRIPT_FILE}"
\n if [[ $? -eq 0 ]]; then
\n echo " [\u6210\u529f] $server \u90e8\u7f72\u5b8c\u6210"
\n else
\n echo " [\u5931\u8d25] $server \u90e8\u7f72\u51fa\u9519"
\n fi
\ndone<\/p>\n

\u4e09\u3001\u9ad8\u7ea7\u81ea\u52a8\u5316\u6280\u5de7<\/h4>\n

1. \u4f7f\u7528 expect \u81ea\u52a8\u5316\u4ea4\u4e92<\/p>\n

\u5bf9\u4e8e\u9700\u8981\u4ea4\u4e92\u8f93\u5165\u5bc6\u7801\u7684\u547d\u4ee4，\u53ef\u4f7f\u7528 expect \u81ea\u52a8\u5316 \u3002<\/p>\n

#!\/usr\/bin\/expect
\n# auto_ssh.exp\u81ea\u52a8SSH\u767b\u5f55\u5e76\u6267\u884c\u547d\u4ee4
\nset timeout 30
\nset host "192.168.1.100"
\nset user "admin"
\nset password "your_password"<\/p>\n

spawn ssh "$user@$host"
\nexpect {
\n "*password:*" {
\n send "$password\\\\r"
\n exp_continue }
\n "*yes\/no*" {
\n send "yes\\\\r"
\n exp_continue }
\n "$user@*" {
\n send "ls -la\\\\r"
\n send "df -h\\\\r"
\n send "exit\\\\r"
\n }
\n}
\nexpect eof<\/p>\n

2. \u4f7f\u7528 cron \u5b9a\u65f6\u4efb\u52a1<\/p>\n

\u5c06\u811a\u672c\u8bbe\u7f6e\u4e3a\u5b9a\u65f6\u6267\u884c，\u5b9e\u73b0\u5b8c\u5168\u81ea\u52a8\u5316\u3002<\/p>\n

# \u7f16\u8f91\u5f53\u524d\u7528\u6237\u7684cron\u4efb\u52a1
\ncrontab -e<\/p>\n

# \u6dfb\u52a0\u4ee5\u4e0b\u884c (\u6bcf\u5929\u51cc\u66682\u70b9\u6267\u884c\u5907\u4efd\u811a\u672c)
\n0 2 * * * \/home\/user\/scripts\/backup.sh >> \/var\/log\/backup_cron.log 2>&1<\/p>\n

# \u6bcf5\u5206\u949f\u68c0\u67e5\u4e00\u6b21\u7cfb\u7edf\u72b6\u6001
\n*\/5 * * * * \/home\/user\/scripts\/monitor_system.sh<\/p>\n

# \u6bcf\u5468\u4e00\u65e9\u4e0a6\u70b9\u6e05\u7406\u65e5\u5fd7
\n0 6 * * 1 \/home\/user\/scripts\/clean_logs.sh<\/p>\n

3. \u9519\u8bef\u5904\u7406\u4e0e\u65e5\u5fd7\u8bb0\u5f55<\/p>\n

#!\/bin\/bash
\n# \u589e\u5f3a\u7684\u9519\u8bef\u5904\u7406\u811a\u672c<\/p>\n

set -euo pipefail # \u4e25\u683c\u6a21\u5f0f：\u9519\u8bef\u9000\u51fa\u3001\u672a\u5b9a\u4e49\u53d8\u91cf\u62a5\u9519\u3001\u7ba1\u9053\u9519\u8bef<\/p>\n

LOG_FILE="\/var\/log\/auto_task_$(date +%Y%m%d).log"
\nexec 1>>"$LOG_FILE" 2>&1 # \u91cd\u5b9a\u5411\u6240\u6709\u8f93\u51fa\u5230\u65e5\u5fd7<\/p>\n

# \u81ea\u5b9a\u4e49\u9519\u8bef\u5904\u7406\u51fd\u6570
\nerror_exit() {
\n echo "[ERROR] $1 at line $2" >&2 # \u53ef\u6dfb\u52a0\u53d1\u9001\u8b66\u62a5\u3001\u6e05\u7406\u4e34\u65f6\u6587\u4ef6\u7b49\u64cd\u4f5c exit 1
\n}<\/p>\n

trap 'error_exit "$BASH_COMMAND" $LINENO' ERR # \u6355\u83b7\u9519\u8bef<\/p>\n

# \u4e3b\u903b\u8f91
\necho "=== \u4efb\u52a1\u5f00\u59cb: $(date) ==="<\/p>\n

# \u5173\u952e\u64cd\u4f5c\u793a\u4f8b
\nif [[ ! -f "\/etc\/config.yaml" ]]; then
\n echo "\u914d\u7f6e\u6587\u4ef6\u4e0d\u5b58\u5728，\u4f7f\u7528\u9ed8\u8ba4\u914d\u7f6e"
\n cp "\/etc\/default_config.yaml" "\/etc\/config.yaml"
\nfi<\/p>\n

# \u4f7f\u7528\u4e34\u65f6\u6587\u4ef6\u5b89\u5168\u5904\u7406\u6570\u636e
\nTEMP_FILE=$(mktemp)
\nprocess_data > "$TEMP_FILE"
\nmv "$TEMP_FILE" "\/var\/data\/processed.txt"<\/p>\n

echo "=== \u4efb\u52a1\u5b8c\u6210: $(date) ==="<\/p>\n

\u56db\u3001\u6700\u4f73\u5b9e\u8df5\u5efa\u8bae<\/h4>\n
  • \u811a\u672c\u5f00\u5934：\u603b\u662f\u5305\u542b #!\/bin\/bash \u548c\u811a\u672c\u63cf\u8ff0\u6ce8\u91ca\u3002<\/li>\n
  • \u9519\u8bef\u68c0\u67e5：\u68c0\u67e5\u547d\u4ee4\u8fd4\u56de\u503c ($?)，\u5bf9\u5173\u952e\u64cd\u4f5c\u8fdb\u884c\u9a8c\u8bc1 \u3002<\/li>\n
  • \u4f7f\u7528\u5f15\u53f7：\u53d8\u91cf\u5f15\u7528\u603b\u662f\u4f7f\u7528\u53cc\u5f15\u53f7，\u5982 "$variable"，\u9632\u6b62\u7a7a\u683c\u5bfc\u81f4\u7684\u9519\u8bef\u3002<\/li>\n
  • \u5b89\u5168\u8003\u8651：\u907f\u514d\u5728\u811a\u672c\u4e2d\u786c\u7f16\u7801\u5bc6\u7801，\u4f7f\u7528SSH\u5bc6\u94a5\u6216\u73af\u5883\u53d8\u91cf\u3002<\/li>\n
  • \u65e5\u5fd7\u8bb0\u5f55：\u6240\u6709\u81ea\u52a8\u5316\u811a\u672c\u90fd\u5e94\u8bb0\u5f55\u8be6\u7ec6\u65e5\u5fd7，\u4fbf\u4e8e\u8c03\u8bd5\u548c\u5ba1\u8ba1\u3002<\/li>\n
  • \u6d4b\u8bd5：\u5148\u5728\u6d4b\u8bd5\u73af\u5883\u8fd0\u884c，\u4f7f\u7528 set -x \u8c03\u8bd5\u6a21\u5f0f\u67e5\u770b\u6267\u884c\u8fc7\u7a0b\u3002<\/li>\n
  • \u4ee3\u7801\u590d\u7528：\u5c06\u5e38\u7528\u529f\u80fd\u5c01\u88c5\u4e3a\u51fd\u6570，\u5b58\u653e\u5728\u5355\u72ec\u7684\u5e93\u6587\u4ef6\u4e2d\u3002<\/li>\n
  • \u7248\u672c\u63a7\u5236：\u5c06\u811a\u672c\u7eb3\u5165Git\u7b49\u7248\u672c\u63a7\u5236\u7cfb\u7edf\u7ba1\u7406\u3002<\/li>\n

    \u901a\u8fc7\u7ed3\u5408\u8fd9\u4e9b\u547d\u4ee4\u548c\u811a\u672c\u6280\u672f，\u53ef\u4ee5\u6784\u5efa\u4ece\u7b80\u5355\u6587\u4ef6\u64cd\u4f5c\u5230\u590d\u6742\u7cfb\u7edf\u7ba1\u7406\u7684\u5168\u81ea\u52a8\u5de5\u4f5c\u6d41，\u663e\u8457\u63d0\u5347Linux\u73af\u5883\u4e0b\u7684\u5de5\u4f5c\u6548\u7387 \u3002<\/p>\n

    \n

    \u53c2\u8003\u6765\u6e90<\/h3>\n
      \n
    • Linux\u547d\u4ee4\u4e0eShell\u811a\u672c（\u5b66\u4e60\u7b14\u8bb0）<\/li>\n
    • \u638c\u63e1\u5e38\u7528\u7684 Linux \u547d\u4ee4\u548c Shell \u811a\u672c\u7f16\u7a0b\u6280\u672f，\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u7cfb\u7edf\u7ba1\u7406\u548c\u81ea\u52a8\u5316\u4efb\u52a1\u7684\u6548\u7387<\/li>\n
    • \u4ece\u547d\u4ee4\u884c\u5230\u81ea\u52a8\u5316：\u7528Shell\u811a\u672c\u548cxrandr\u7ba1\u7406\u4f60\u7684Linux\u591a\u5c4f\u5de5\u4f5c\u7ad9<\/li>\n
    • Windows Prompt\u547d\u4ee4\u884c\u548cLinux\u7684Shell\u811a\u672c\u81ea\u52a8\u5316<\/li>\n
    • \u4ece\u547d\u4ee4\u884c\u5230\u81ea\u52a8\u5316：\u7528xrandr\u548cshell\u811a\u672c\u6253\u9020\u4f60\u7684Linux\u591a\u5c4f\u5de5\u4f5c\u6d41（\u542b\u5e38\u89c1\u9519\u8bef\u6392\u67e5）<\/li>\n
    • \u81ea\u52a8\u5316\u811a\u672cssh\u4ee5\u53catelnet\u53d1\u9001\u547d\u4ee4\u5e76\u9000\u51fa(windows\u548clinux\u90fd\u9002\u7528)<\/li>\n<\/ul>\n

      \u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

      Linux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u6838\u5fc3\u6307\u5357
      \n\u4e00\u3001\u6838\u5fc3Linux\u547d\u4ee4\u901f\u67e5\u8868
      \n\u7c7b\u522b\u547d\u4ee4\u529f\u80fd\u63cf\u8ff0\u5e38\u7528\u793a\u4f8b\u6587\u4ef6\u4e0e\u76ee\u5f55ls\u5217\u51fa\u76ee\u5f55\u5185\u5bb9ls -la (\u8be6\u7ec6\u5217\u8868)\u00a0pwd\u663e\u793a\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55pwd\u00a0cd\u5207\u6362\u76ee\u5f55cd \/home\/user\u00a0mkdir\u521b\u5efa\u76ee\u5f55mkdir -p project\/{src,bin} (\u521b\u5efa\u591a\u7ea7\u76ee\u5f55)\u00a0rm\u5220\u9664\u6587\u4ef6\u6216\u76ee\u5f55rm -rf old_dir\/ (\u5f3a\u5236\u9012\u5f52\u5220\u9664)\u00a0cp\u590d\u5236cp -r source\/ dest\/ (\u9012\u5f52\u590d\u5236\u76ee\u5f55)\u00a0mv\u79fb\u52a8\/\u91cd\u547d\u540dmv old.txt <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[352],"topic":[],"class_list":["post-89166","post","type-post","status-publish","format-standard","hentry","category-server","tag-bash"],"yoast_head":"\nLinux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u7cbe\u534e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/89166.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u7cbe\u534e - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Linux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u6838\u5fc3\u6307\u5357 \u4e00\u3001\u6838\u5fc3Linux\u547d\u4ee4\u901f\u67e5\u8868 \u7c7b\u522b\u547d\u4ee4\u529f\u80fd\u63cf\u8ff0\u5e38\u7528\u793a\u4f8b\u6587\u4ef6\u4e0e\u76ee\u5f55ls\u5217\u51fa\u76ee\u5f55\u5185\u5bb9ls -la (\u8be6\u7ec6\u5217\u8868)\u00a0pwd\u663e\u793a\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55pwd\u00a0cd\u5207\u6362\u76ee\u5f55cd \/home\/user\u00a0mkdir\u521b\u5efa\u76ee\u5f55mkdir -p project\/{src,bin} (\u521b\u5efa\u591a\u7ea7\u76ee\u5f55)\u00a0rm\u5220\u9664\u6587\u4ef6\u6216\u76ee\u5f55rm -rf old_dir\/ (\u5f3a\u5236\u9012\u5f52\u5220\u9664)\u00a0cp\u590d\u5236cp -r source\/ dest\/ (\u9012\u5f52\u590d\u5236\u76ee\u5f55)\u00a0mv\u79fb\u52a8\/\u91cd\u547d\u540dmv old.txt\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/89166.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-02T07:16:30+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/89166.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/89166.html\",\"name\":\"Linux\u547d\u4ee4\u4e0e\u81ea\u52a8\u5316\u811a\u672c\u7cbe\u534e - 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