bash while break
bash while break

#!/bin/bash#Thisscriptprovideswisdom#Youcannowexitinadecentway.FORTUNE=/usr/games/fortunewhiletrue;doechoOnwhichtopicdoyouwantadvice?,2022年3月11日—iisabashvariablewhichholdsanumericvalue.Wecanomittheleadingdollarsign$within((and)).Trytoputalinee...

9.5. Break and continue

#!/bin/bash#Thisscriptprovideswisdom#Youcannowexitinadecentway.FORTUNE=/usr/games/fortunewhiletrue;doechoOnwhichtopicdoyouwantadvice?

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9.5. Break and continue

#!/bin/bash # This script provides wisdom # You can now exit in a decent way. FORTUNE=/usr/games/fortune while true; do echo On which topic do you want advice?

bash

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bashwhilebreak

#!/bin/bash#Thisscriptprovideswisdom#Youcannowexitinadecentway.FORTUNE=/usr/games/fortunewhiletrue;doechoOnwhichtopicdoyouwantadvice?,2022年3月11日—iisabashvariablewhichholdsanumericvalue.Wecanomittheleadingdollarsign$within((and)).Trytoputalineecho$i ...,2020年1月28日—Thebreakstatementisusedtoexitthecurrentloop.Thecontinuestatementisusedtoexitthecurrentiterationofaloopandbeginthenext ...,2023...

Linux Bash環境下,輸入指令不留痕跡的作法

Linux Bash環境下,輸入指令不留痕跡的作法

其實在系統上留下「輸入指令的記錄」是個安全的作法,至少下了什麼指令會有一個依據,萬一下錯指令還可以看看到底做錯了什麼,只是被老闆砍頭也要有個完整的紀錄,總不能說"好像"下錯指令,或許有些錯誤不是該自...