Linux shell編程——if條件判斷 - wokaotesting - 博客頻道 - CSDN.NET

[macg@mac-home ~]$ vi test.sh: echo "input the num:" read num echo "input is $num" if [ -z "$JHHOME" -a -d $HOME/$num ] 如果變數$JHHOME為空，且$HOME/$num目錄存在 then JHHOME=$HOME/$num 則賦值 fi echo "JHHOME is ...

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