請(qǐng)教shell問(wèn)題：為什么腳本運(yùn)行時(shí)會(huì)將當(dāng)前啟動(dòng)的shell進(jìn)程打出來(lái)

qinghan1125

腳本想實(shí)現(xiàn)的功能是殺掉$1參數(shù)代表的進(jìn)程，我現(xiàn)在輸入一個(gè)不存在的進(jìn)程abc，ps -ef|grep abc確認(rèn)無(wú)該進(jìn)程，但是腳本執(zhí)行時(shí)卻將當(dāng)前shell打印出來(lái)了
sbmp:/tmp/ou # ./pskill.sh abc
5232 /bin/sh
Are these processes to be killed?[y..n]n
sbmp:/tmp/ou #
sbmp:/tmp/ou # ls hold1*
hold1.5232
sbmp:/tmp/ou #
sbmp:/tmp/ou # cat hold1.5232
5232    /bin/sh
sbmp:/tmp/ou #
sbmp:/tmp/ou #
sbmp:/tmp/ou # ps -ef|grep abc|grep -v "grep"|awk '{print $2"\t"$8}'
//沒(méi)有結(jié)果輸出

具體內(nèi)容如下：
#!/bin/sh
HOLD1=/tmp/ou/hold1.$$
PROCESS=$1

usage()
{
        echo "Usage: `basename $0` processname"
        exit 1
}

if [ $# -ne 1 ]
then
        usage
fi

case $1 in
        *)
        ps -ef|grep $PROCESS|grep -v "grep"|awk '{print $2"\t"$8}' >$HOLD1
        ;;
esac

if [ ! -s $HOLD1 ]
then
        echo "No process found"
        exit 1
fi

while read LOOP1 LOOP2
do
        echo $LOOP1 $LOOP2
done <$HOLD1

echo -n "Are these processes to be killed?[y..n]"
read ANS

case $ANS in
        y|Y)
               while read LOOP1 LOOP2
        do
                echo $LOOP1
                kill -9 $LOOP1
        done <$HOLD1
        rm /tmp/*.$$
        ;;
        n|N)
        ;;
esac

CU_Solaris

echo -n "Are these processes to be killed?[y..n]"


你看一下這句的位置是否正確？

不管如何這句echo都始終顯示的

qinghan1125

但是從執(zhí)行結(jié)果看的確將當(dāng)前shell的進(jìn)程號(hào)寫進(jìn)去了，這個(gè)怎么解決？
sbmp:/tmp/ou # ./pskill.sh abc
5232 /bin/sh

sbmp:/tmp/ou # cat hold1.5232
5232    /bin/sh

至于你說(shuō)的echo位置不對(duì)問(wèn)題，前面有個(gè)檢查，如果文件為空則退出腳本了
if [ ! -s $HOLD1 ]
then
        echo "No process found"
        exit 1
fi

CU_Solaris

#!/bin/sh
HOLD1=/tmp/ou/hold1.$$
PROCESS=$1

usage()
{
        echo "Usage: `basename $0` processname"
        exit 1
}

if [ $# -ne 1 ]
then
        usage
fi

case $1 in
        *)
        ps -ef|grep $PROCESS|grep -v "grep"|awk '{print $2"\t"$8}' >$HOLD1
        ;;
esac

if [ ! -s $HOLD1 ]
then
        echo "No process found"
        exit 1
else#改

while read LOOP1 LOOP2
do
        echo $LOOP1 $LOOP2
done <$HOLD1

echo -n "Are these processes to be killed?[y..n]"
read ANS

case $ANS in
        y|Y)
               while read LOOP1 LOOP2
        do
                echo $LOOP1
                kill -9 $LOOP1
        done <$HOLD1
        rm /tmp/*.$$
        ;;
        n|N)
        ;;
esac

fi#改




判斷是否存在進(jìn)程不存在顯示No process found  else 就顯示是否kill

[ 本帖最后由 CU_Solaris 于 2010-1-29 18:40 編輯 ]

qinghan1125

改了，結(jié)果一樣，主要是$HOLD1文件中有一行當(dāng)前shell的進(jìn)程號(hào)，所以無(wú)論如何都判斷有進(jìn)程存在

sbmp:/tmp/ou # ./pskill.sh abc
5430 /bin/sh
Are these processes to be killed?[y..n]n
sbmp:/tmp/ou #
sbmp:/tmp/ou # ls hold*
hold1.5430
sbmp:/tmp/ou # cat hold1.5430
5430    /bin/sh

qinghan1125

繼續(xù)求助

qinghan1125

輸入一個(gè)有的進(jìn)程臨時(shí)文件中還是會(huì)打印當(dāng)前shell，見(jiàn)如下最后一行
sbmp:/tmp/ou # ./pskill.sh ora_
20695 ora_pmon_ora11g
20697 ora_vktm_ora11g
20701 ora_diag_ora11g
20703 ora_dbrm_ora11g
20705 ora_psp0_ora11g
……………………………………
……………………………………
20727 ora_s000_ora11g
7729 ora_fbda_ora11g
7734 ora_qmnc_ora11g
7748 ora_q000_ora11g
7750 ora_q001_ora11g
7825 ora_smco_ora11g
8376 ora_w000_ora11g
8550 /bin/sh

nhw_cs

這種現(xiàn)象不是很正常么?

試驗(yàn):

$ cat test.sh
#!/bin/sh
ps -ef|grep $1|grep -v grep

$ ./test.sh dummy   
    hper 16449 16431   0 09:34:32 pts/44      0:00 /bin/sh ./test.sh dummy
$