一連のプロセスを検出する簡単なスクリプトの作成に関するアドバイスが必要です。

Question

これは、バックグラウンドバックアップ/復元RSYNCプロセスを監視するために必要なスクリプトです。

スクリプトに"while [true]" ループ。次に、終了するかどうかの条件付きテストを実行します。

終了するには、ここにロジックを追加して、スクリプトを終了する前に必要な操作を実行できます。

続行するには、ループ内で初めてであるかどうかを追跡するコマンドを追加し、それに応じて操作を実行できます。

使用されるCPUの量は、指定された条件に対して異なるスキャンを実行する前に、各ループで指定されたタイミング遅延によって異なります。

スクリプトリストOS_Admin__partitionMirror_Monitor.sh:

#!/bin/sh

##########################################################################################################
### $Id: OS_Admin__partitionMirror_Monitor.sh,v 1.3 2022/08/05 03:46:55 root Exp root $
###
### This script is intended to perform an ongoing scan to report when an active RSYNC backup process terminates.
##########################################################################################################

test_STEP1()
{
echo "root        7520    7514 12 20:50 pts/0    00:05:46 rsync --checksum --one-file-system --recursive --outbuf=Line --links --perms --times --group --owner --devices --specials --verbose --out-format=%t|%i|%M|%b|%f| --delete-delay --whole-file --human-readable --protect-args --ignore-errors --msgs2stderr ./ /DB001_F7/
root        7514    7512  0 20:50 pts/0    00:00:25 rsync --checksum --one-file-system --recursive --outbuf=Line --links --perms --times --group --owner --devices --specials --verbose --out-format=%t|%i|%M|%b|%f| --delete-delay --whole-file --human-readable --protect-args --ignore-errors --msgs2stderr ./ /DB001_F7/
root        7512       1 17 20:50 pts/0    00:08:27 rsync --checksum --one-file-system --recursive --outbuf=Line --links --perms --times --group --owner --devices --specials --verbose --out-format=%t|%i|%M|%b|%f| --delete-delay --whole-file --human-readable --protect-args --ignore-errors --msgs2stderr ./ /DB001_F7/" >${TMP}
awk '{ printf("\trsync|%s\n", $0 ) ; }' ${TMP}
echo ""
}

test_STEP2()
{
echo "7520
7514
7512" >${TMP}.pid
awk '{ printf("\t pid |%s\n", $0 ) ; }' ${TMP}.pid
echo ""
}

test_STEP3()
{
echo "7514|7520
7512|7514
1|7512" >${TMP}.ppid
awk '{ printf("\tppid |%s\n", $0 ) ; }' ${TMP}.ppid
echo ""
}



. $Oasis/bin/INCLUDES__TerminalEscape_SGR.bh

BASE=`basename "$0" ".sh" `
TMP="/tmp/tmp.${BASE}.$$"

date | awk '{ printf("\n\t %s\n\n", $0 ) ; }'

if [ "$1" = "--snapshots" ]
then
    SNAP=1
else
    SNAP=0
fi

rm -f ${TMP}
ps -ef 2>&1 | grep -v grep | grep rsync | sort -r >${TMP}
#test_STEP1


if [ ! -s ${TMP} ]
then
    echo "\t RSYNC process is ${redON}not${redOFF} running (or has already ${greenON}terminated${greenOFF}).\n"
    exit 0
fi

awk '{ print $2 }' <${TMP} >${TMP}.pid
#test_STEP2


awk '{ printf("%s|%s\n", $3, $2) }' <${TMP} >${TMP}.ppid
#test_STEP3


for pid in `cut -f1 -d\| ${TMP}.ppid `
do
    PPID=`grep ${pid} ${TMP}.pid `
    PID=`grep '^'${pid} ${TMP}.ppid | cut -f2 -d\| `
    PRNT=`grep '^'${pid} ${TMP}.ppid | cut -f1 -d\| `
    if [ \( -n "${PPID}" \)  -a  \( "${PRNT}" -ne 1 \) ]
    then
        descr="child"
        echo "\t PID ${PID} is RSYNC ${cyanON}${italicON}${descr}${italicOFF}${cyanOFF} process ..."
    else
        descr="MASTER"
        echo "\t PID ${PID} is RSYNC ${yellowON}${descr}${yellowOFF} process ..."
    fi
done

getRsyncProcessStatus()
{
    testor=`ps -ef 2>&1 | awk -v THIS="${PID}" '{ if( $2 == THIS ){ print $0 } ; }' `
    MODE=`echo "${testor}" |
        awk '{ if( $NF ~ /^[/]DB001_F?[/]/ ){ print "2" }else{ print "1" } ; }' 2>>/dev/null ` 
}

getRsyncProcessStatus

if [ ${MODE} -eq 2 ]
then
    echo "\t RSYNC restore process under way ..."
    INTERVAL=60
else
    echo "\t RSYNC backup process under way ..."
    INTERVAL=10
fi

if [ -n "${testor}" ]
then
    echo "\n\t ${testor}\n" | sed 's+--+\n\t\t\t\t\t\t\t\t--+g' | awk '{
        rLOC=index($0,"rsync") ;
        if( rLOC != 0 ){
            sBeg=sprintf("%s", substr($0,1,rLOC-1) ) ;
            sEnd=sprintf("%s", substr($0,rLOC+5) ) ;
            sMid="\033[91;1mrsync\033[0m" ;
            printf("%s%s%s\n", sBeg, sMid, sEnd) ;
        }else{
            print $0 ;
        } ;
    }'
    echo "\n\t Scanning at ${INTERVAL} second intervals ..."
    test ${SNAP} -eq 1 || echo "\t \c"
fi

if [ ${SNAP} -eq 1 ]
then
    while true
    do
        getRsyncProcessStatus
        if [ -z "${testor}" ]
        then
            echo "\n\n\t RSYNC process (# ${PID}) has ${greenON}completed${greenOFF}.\n"
            date | awk '{ printf("\t %s\n\n", $0 ) ; }'
            exit 0
        fi
        jobLog=`ls -tr /site/Z_backup.*.err | tail -1 `
        echo "\t `tail -1 ${jobLog}`"
        sleep ${INTERVAL}
    done 2>&1 | uniq
else
    while true
    do
        getRsyncProcessStatus
        if [ -z "${testor}" ]
        then
            echo "\n\n\t RSYNC process (# ${PID}) has ${greenON}completed${greenOFF}.\n"
            date | awk '{ printf("\t %s\n\n", $0 ) ; }'
            exit 0
        fi
        echo ".\c"
        sleep ${INTERVAL}
    done 
fi


exit 0
exit 0
exit 0

このスクリプトは「Bourne Header」スクリプトを使用します。__TerminalEscape_SGR.bhが含まれています。:

#!/bin/sh

##########################################################################################################
### $Id: INCLUDES__TerminalEscape_SGR.bh,v 1.2 2022/09/03 01:57:31 root Exp $
###
### This includes string variables defined to perform various substitutions for the ANSI Terminal Escape Sequences, i.e. SGR (Select Graphic Rendition subset)
##########################################################################################################

### "\e" is same as "\033"

boldON="\e[1m"
boldOFF="\e[0m"

italicON="\e[3m"
italicOFF="\e[0m"

underlineON="\e[4m"
underlineOFF="\e[0m"

blinkON="\e[5m"
blinkOFF="\e[0m"

cyanON="\e[96;1m"
cyanOFF="\e[0m"

cyanDarkON="\e[36;1m"
cyanDarkOFF="\e[0m"

greenON="\e[92;1m"
greenOFF="\e[0m"

yellowON="\e[93;1m"
yellowOFF="\e[0m"

redON="\e[91;1m"
redOFF="\e[0m"

orangeON="\e[33;1m"
orangeOFF="\e[0m"

blueON="\e[94;1m"
blueOFF="\e[0m"

blueSteelON="\e[34;1m"
blueSteelOFF="\e[0m"

magentaON="\e[95;1m"
magentaOFF="\e[0m"

##########################################################################################################
### Usage Examples:
##########################################################################################################

#   echo "\t RSYNC process is ${redON}not${redOFF} running (or has already ${greenON}terminated${greenOFF}).\n"
#   echo "\t ${PID} is ${cyanON}${italicON}${descr}${italicOFF}${cyanOFF} process ..."
#   echo "\t ${PID} is ${yellowON}${descr}${yellowOFF} process ..."
#   echo "\n\n\t RSYNC process (# ${pid}) has ${greenON}completed${greenOFF}.\n"

##########################################################################################################
### Example of scenario where escape codes are hard-coded; \e was not accepted by awk
##########################################################################################################

#   echo "\n\t ${testor}\n" | sed 's+--+\n\t\t\t\t\t\t\t\t--+g' | awk '{
#       rLOC=index($0,"rsync") ;
#       if( rLOC != 0 ){
#           sBeg=sprintf("%s", substr($0,1,rLOC-1) ) ;
#           sEnd=sprintf("%s", substr($0,rLOC+5) ) ;
#           sMid="\033[91;1mrsync\033[0m" ;
#           printf("%s%s%s\n", sBeg, sMid, sEnd) ;
#       }else{
#           print $0 ;
#       } ;
#   }'

##########################################################################################################
    echo "\n\t Imported LIBRARY:  INCLUDES__TerminalEscape_SGR.bh ..."
##########################################################################################################

RSYNCが実行されていないときに報告される内容のスナップショット：

RSYNCが実行されたときに報告される内容のスナップショット：

Answer 1