kubectl logs -f podName --tail 100

kubectl logs -f xxx --tail yyy | grep zzz

sh .sh xxx yyy zzz

#!/bin/bash
# kubectl get pods
#notification
x="kubectl logs -f"
y="--tail"
g="|grep"
name=`kubectl get pods | grep ^$1 | awk '{print $1}'`
x="eval $x $name $y $2 $g $3"
${x}

# sh log.sh podName 20 content
# 最終：kubectl logs -f podName --tail 20 | grep content

#!/bin/bash
# ":"：如果某個選項（option）后面出現(xiàn)了冒號（":"），則表示這個選項后面可以接參數(shù)
x="kubectl logs -f"
y="--tail"
g="|grep"
while getopts ":n:f:c:" opt
do
    case $opt in
        n)
		name=`kubectl get pods | grep ^$OPTARG | awk '{print $1}'`
		x="$x $name"
        ;;
        f)
		x="$x $y $OPTARG"
        ;;
        c) 
        x="$x $g $OPTARG"
        ;;
        ?)
        echo "未知參數(shù)"
        exit 1;;
    esac
done
x="eval $x"
${x}
# sh log.sh -n podName -f 20 -c content
# 最終：kubectl logs -f podName --tail 20 | grep content