#Linux檢視占用記憶體的程序
#!/bin/bash
echo -e `date +%y%m%d%H%M`
echo -e "PID\t\tMem\t\tProc_Name"
# 拿出/proc目錄下所有以數字為名的目錄(程序名是數字才是程序，其他如sys,net等存放的是其他資訊)
for pid in `ls -l /proc | grep ^d | awk '{ print $9 }'| grep -v [^0-9]`
do
if [ $pid -eq 1 ];then continue;fi
grep -q "VmRSS" /proc/$pid/status 2>/dev/null
if [ $? -eq 0 ];then
mem=$(grep VmRSS /proc/$pid/status \
| gawk '{ sum+=$2;} END{ print sum }')
proc_name=$(ps aux | grep -w "$pid" | grep -v grep \
| awk '{ for(i=11;i<=NF;i++){ printf("%s ",$i); }}')
if [ $mem -gt 0 ];then
echo -e "${pid}\t${mem}\t${proc_name}"
fi
fi
done | sort -k2 -n | awk -F'\t' '{
pid[NR]=$1;
size[NR]=$2;
name[NR]=$3;
}
END{
for(id=1;id<=length(pid);id++)
{
if(size[id]<1024)
printf("%-10s\t%15sKB\t%s\n",pid[id],size[id],name[id]);
else if(size[id]<1048576)
printf("%-10s\t%15.2fMB\t%s\n",pid[id],size[id]/1024,name[id]);
else
printf("%-10s\t%15.2fGB\t%s\n",pid[id],size[id]/1048576,name[id]);
}
}'