本文共 984 字，大约阅读时间需要 3 分钟。

“秒”转换为“时-分-秒”

swap_seconds (){        SEC=$1        (( SEC < 60 )) && echo -e "[Elapsed time: $SEC seconds]\c"        (( SEC >= 60 && SEC < 3600 )) && echo -e "[Elapsed time: $(( SEC / 60 )) \        min $(( SEC % 60 )) sec]\c"        (( SEC > 3600 )) && echo -e "[Elapsed time: $(( SEC / 3600 )) hr \        $(( (SEC % 3600) / 60 )) min $(( (SEC % 3600) % 60 )) sec]\c"}swap_seconds $*

ping主机

function ping_host{HOST=$1 # Grab the host to ping from ARG1.PING_COUNT=3PACKET_SIZE=54# This next case statement executes the correct ping# command based on the Unix flavorcase $(uname) inAIX|OpenBSD|Linux|CYGWIN_NT-10.0)           ping -c${PING_COUNT} $HOST 2>/dev/null           ;;HP-UX)           ping $HOST $PACKET_SIZE $PING_COUNT 2>/dev/null           ;;SunOS)           ping -s $HOST $PACKET_SIZE $PING_COUNT 2>/dev/null           ;;*)           echo -e "\nERROR: Unsupported Operating System - $(uname)"           echo -e "\n\t. . .EXITING. . .\n"           exit 1esac}ping_host $*

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