1. CPU 相关查看命令
sudo cpulimit -p pid -l 50
ps -eo %cpu,args | grep -m1 PROCESS | awk '{print $1}'
ps aux --sort=%mem,%cpu
ps -e -o pcpu,cpu,nice,state,cputime,args --sort pcpu | sed "/^ 0.0 /d"
grep "processor" /proc/cpuinfo | wc -l
grep -c -e '^cpu[0-9]\+' /proc/stat
grep "model name" /proc/cpuinfo
cat /proc/cpuinfo
grep -q '\<lm\>' /proc/cpuinfo && echo 64 bits || echo 32 bits
getconf LONG_BIT | grep '64'
java -version
awk -F": " '/cpu MHz\ */ { print "Processor (or core) running speed is: " $2 }' /proc/cpuinfo ; dmidecode | awk -F": " '/Current Speed/ { print "Processor real speed is: " $2 }'
ps ax -L -o pid,tid,psr,pcpu,args | sort -nr -k4| head -15 | cut -c 1-90
cat /proc/interrupts
mpstat –P ALL 1
cat /proc/cpuinfo | grep "cpu cores" | uniq | awk -F: '{print $2}'
cat /proc/cpuinfo | grep "siblings"
cat /proc/stat | grep intr
2. 文件相关查看命令
du -xB M --max-depth=2 /var | sort -rn | head -n 15
du -h --max-depth=1
du -s * | sort -n | tail
du -b --max-depth 1 | sort -nr | perl -pe 's{([0-9]+)}{sprintf "%.1f%s", $1>=2**30? ($1/2**30, "G"): $1>=2**20? ($1/2**20, "M"): $1>=2**10? ($1/2**10, "K"): ($1, "")}e'
du -h /path | sort -h
watch -n60 du /var/log/messages
find . -type d -name '.svn' -print0 | xargs -0 rm -rdf
df -P | column -t
watch -d -n 5 df
df -i <partition>
df -h | grep -v ^none | ( read header ; echo "$header" ; sort -rn -k 5)
df -x tmpfs | grep -vE "(gvfs|procbususb|rootfs)"
df -H
fdisk -l /dev/sda
fdisk -l
fdisk -u
fdisk -s partition
iostat -m -d /dev/sda1
hdparm -t /dev/sda
find -L / -samefile /path/to/file -exec ls -ld {
} +
find . -type f -exec ls -s {
} \; | sort -n -r | head -5
find ./ -type f -mtime +365 -exec rm -f {
} \;
find . -type f -size +100M