There is a space missing between elif and [ : elif[ "$seconds" -gt 0 ]. should be elif [ "$seconds" -gt 0 ]. ... <看更多>
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There is a space missing between elif and [ : elif[ "$seconds" -gt 0 ]. should be elif [ "$seconds" -gt 0 ]. ... <看更多>
最主要就是if 開頭,結尾一定是fi,中間再穿插elif [ condition ]; then 或else。 延續昨天的範例,我們來增加if ... else 吧! #!/bin/bash echo -n "你好! ... <看更多>
在sh/bash 里可不能这么写,如果else 分支没有语句执行,就不要写这个else。 ... if condition1 then command1 elif condition2 then command2 else commandN fi. ... <看更多>
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和C語言類似,在Shell中用 if 、 then 、 elif 、 else 、 fi 這幾條命令實現分支控制。 ... /bin/sh if [ -f /bin/bash ] then echo "/bin/bash is a file" else echo ... ... <看更多>
Why even do it this way? Not only is parsing the output of ls a terrible idea, you're looking for details of nvme devices that may or may ... ... <看更多>
#!/bin/bash. x=3. if [[ $x > 7 ]]; then. echo "x მეტია შვიდზე და მისი მნიშვნელობა არის: $x". elif [[ $x <= 5 ]] ... ... <看更多>