2017-06-12 75 views
0

某些进程(如git gc --aggressive)需要长时间运行,占用大量的磁盘空间,如果用完了磁盘空间死亡。因此,如果磁盘即将用完,我想暂停它们,所以我有时间释放一些内存。我怎样才能做到这一点?暂停过程之前磁盘已满

回答

0

这是我想出的一个初始解决方案。经过测试与Mac OS X.建议欢迎!

#!/bin/bash 
FILESYSTEM="/dev/disk1" 
DF=/usr/local/opt/coreutils/libexec/gnubin/df 
OSASCRIPT=/usr/bin/osascript 

if ! [[ -x $DF ]]; then echo "Error: $DF isn't executable."; exit 1; fi 

PID=$1 
STOPAT=$2 

# Verify input 
if [[ -n ${PID//[0-9]/} ]]; then echo "Error: The first parameter should be an integer"; exit 1; fi 
if [[ -n ${STOPAT//[0-9]/} ]]; then echo "Error: The second parameter should be an integer"; exit 1; fi 

RED='\033[0;31m'; PURPLE='\033[0;35m'; BLUE='\033[0;36m' 
NC='\033[0m' # No Color 

echo -e "Will pause the following process when there are ${PURPLE}$STOPAT${NC} bytes left on ${PURPLE}$FILESYSTEM${NC}" 

PROCESS=`ps -p $PID | grep $PID` 
echo -e "${BLUE}$PROCESS${NC}" 

# Check every second to see if FILESYSTEM has more than STOPAT bytes left. 
while true; do 
    left=`$DF | grep -m 1 $FILESYSTEM | tr -s ' ' | cut -d" " -f4` 
    echo -ne "$left bytes left\r"; 
    if [[ $left -lt $STOPAT ]]; then 
     MSG="pausing process...$PID"; 
     echo $MSG; 
     if [[ -x $OSASCRIPT ]]; then 
      $OSASCRIPT -e "display notification \"$MSG\"" 
     fi 
     kill -TSTP $PID 
     break 
    fi 
    sleep 1s 
done 

你需要改变DF,以配合您df。 (我没有直接调用df,因为我的系统,化名为df -h上。)