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將num 設(shè)為2 ,并在/root/mydir下建2個文件，為什么該函數(shù)并不會結(jié)束？

運維

喵喵時光機 2022-07-21 15:15:28

#!/bin/bashread -p "num=" numfileNum(){while truedoarray1=(`ls /root/mydir`)factnum=${#array1[@]}echo $factnumif [ $num -eq $factnum ];thenbreakfidone}fileNum &在一個shell中后臺運行函數(shù)fileNum，當/root/mydir目錄下文件的數(shù)量達到預先設(shè)定的$num時，退出函數(shù)。問題：例如，將num 設(shè)為2 ,并在/root/mydir下建2個文件，但是該函數(shù)并不會結(jié)束，為什么呢？謝謝！

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1 回答

紫衣仙女

TA貢獻1839條經(jīng)驗獲得超15個贊

比面shell腳本文件：#===========test.sh! /bin/shecho_line(){ echo date echo "Wellcome to shell func!"}echo_hello(){ echo "Hello World!"}#======================shell調(diào)用兩函數(shù)啊我用【./test.sh echo_hello】卻沒輸我已經(jīng)給test.sh加執(zhí)行權(quán)限
請問envsetup.sh邊
function gettop()
{
local TOPFILE=build/core/envsetup.mk
if [ -n "$TOP" -a -f "$TOP/$TOPFILE" ] ; then
echo $TOP
else
if [ -f $TOPFILE ] ; then
# The following circumlocution (repeated below as well) ensures
# that we record the true directory name and not one that is
# faked up with symlink names.
PWD= /bin/pwd
fi
}并沒返值
調(diào)用何獲取參數(shù) T=$(gettop)
實際參數(shù)謝謝