shell脚本设置日志格式的方法

1.封装函数 #!/bin/bash function log() { echo "$@" } //测试： log "this is a test..." log "today is `date '+%Y-%m-%d'` " 2.设置时间日志 #!/bin/bash function log() { echo "$(date '+%Y-%m-%d %H:%M:%S') $@" } log "this is a test..." 3.设置日志级别，并输出对应日志 #!/bin/bash #日志级别 debug-1, info-2, warn-3, error-4, always-5 LOG_LEVEL=3 #调试日志 function log_debug(){ content="[DEBUG] $(date '+%Y-%m-%d %H:%M:%S') $@" [ $LOG_LEVEL -le 1  ] && echo -e "\033[32m"  ${content}  "\033[0m" } #信息日志 function log_info(){ content="[INFO] $(date '+%Y-%m-%d %H:%M:%S') $@" [ $LOG_LEVEL -le 2  ] && echo -e "\033[32m"  ${content} "\033[0m" } #警告日志 function log_warn(){ content="[WARN] $(date '+%Y-%m-%d %H:%M:%S') $@" [ $LOG_LEVEL -le 3  ] && echo -e "\033[33m" ${content} "\033[0m" } #错误日志 function log_err(){ content="[ERROR] $(date '+%Y-%m-%d %H:%M:%S') $@" [ $LOG_LEVEL -le 4  ] && echo -e "\033[31m" ${content} "\033[0m" } #一直都会打印的日志 function log_always(){ content="[ALWAYS] $(date '+%Y-%m-%d %H:%M:%S') $@" [ $LOG_LEVEL -le 5  ] && echo -e  "\033[32m" ${content} "\033[0m" } 4.日志写入文件 #日志文件 LOG_FILE=./log.txt function log(){ content="$(date '+%Y-%m-%d %H:%M:%S') $@" echo $content >> $LOG_FILE }

#!/bin/bash #${FUNCNAME[1]代表调用该函数的函数，$LINENO代表当前代码行号 Log(){ local log_level=$1 local log_info=$2 local line=$3 local script_name=$(basename $0) case ${log_level} in "INFO") echo -e "\033[32m$(date "+%Y-%m-%d %T.%N") [INFO]: ${log_info}\033[0m";; "WARN") echo -e "\033[33m$(date "+%Y-%m-%d %T.%N") [WARN]: ${log_info}\033[0m";; "ERROR") echo -e "\033[31m$(date "+%Y-%m-%d %T.%N") [ERROR ${script_name} ${FUNCNAME[1]}:$line]: ${log_info}\033[0m";; *) echo -e "${@}" ;; esac } Log INFO "Install Success" Log WARN "You Can Ignore" Log ERROR "Invalid Param" $LINENO