Cat all android logs

logcat_all.sh

#!/system/bin/sh
#===============================================================================
#
#          FILE: logcat_all.sh
# 
#         USAGE: ./logcat_all.sh 
# 
#   DESCRIPTION: DEBUG版时，打印所有日志（包括时间）到指定文件，方便后期排查问题
# 
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: lwq (28120), [email protected]
#  ORGANIZATION: 
#       CREATED: 04/08/2015 04:57:14 PM CST
#      REVISION:  ---
#===============================================================================

debuggable=$(getprop ro.debuggable)

if [[ $debuggable != 1 ]]; then
    log -t logcat_all "system not debuggable, not start logcat on startup"
    exit
fi

timestamp=$(/system/bin/date +%F_%H-%M-%S)
logcat_pdir=/sdcard/.logcat
logcat_dir=/sdcard/.logcat/$timestamp
logcat_file=$logcat_dir/logcat_${timestamp}.log
kmsg_logfile=$logcat_dir/kmsg_${timestamp}.log
top_logfile=$logcat_dir/top_${timestamp}.log
vmstat_logfile=$logcat_dir/vmstat_${timestamp}.log

mkdir -p $logcat_dir

# 仅保留10个日志文件
busybox test -d $logcat_dir && {
    busybox rm -rf $(busybox ls -1t $logcat_pdir | busybox tail -n +11)
    busybox rm -rf $(busybox ls -1t $logcat_pdir | busybox tail -n +11)
}

# for logcat
{
    log -t logcat_all "start logcat to file: $logcat_file"
    /system/bin/logcat -v threadtime -f $logcat_file
}   &

# for kmsg
{
    log -t logcat_all "start kmsg to file: $kmsg_logfile"
    cat /proc/kmsg >$kmsg_logfile
}   &

# for top
{
    while busybox true; do
        top_newtime=$(/system/bin/date +%F_%H-%M-%S)
        top_logfile=$logcat_dir/top_${top_newtime}.log && > $top_logfile
        log -t logcat_all "start top to file: $top_logfile"
        # 仅保留5个top日志文件
        # 5*100*3=25分钟内的Top信息，避免Top日志文件过大
        busybox rm -f $(busybox ls -1t ${logcat_dir}/top_* | busybox tail -n +6)
        for n in $(busybox seq 1 100) ; do
            # 每3秒打印一次top信息，并加入时间显示
            top -m 5 -d 3 -t -n 1 | busybox awk '{now=strftime("%Y-%M-%d %T "); print now $0}' >>$top_logfile
            echo >>$top_logfile
        done
    done
}   &

# for vmstat
{
    while busybox true; do
        log -t logcat_all "start vmstat_ to file: $vmstat_logfile"
        vmstat_newtime=$(/system/bin/date +%F_%H-%M-%S)
        vmstat_logfile=$logcat_dir/vmstat_${vmstat_newtime}.log && > $vmstat_logfile
        busybox rm -f $(busybox ls -1t ${logcat_dir}/vmstat_* | busybox tail -n +6)
        /system/bin/vmstat -d 3 -n 100 | busybox awk '{now=strftime("%Y-%M-%d %T "); print now $0}' >$vmstat_logfile 2>&1
    done
}   &