&& 与 || 配合
eg: cat test.sh #!/bin/bash [ -e /etc/hosts ] && echo "ok" || echo "fail" bash test.sh ok eg: cat test.sh #!/bin/bash [ -e /etc/hostssssss ] && echo "ok" || echo "fail" bash test.sh fail 注意这里 && 必须在 || 之前
命令合并操作符 {}
[ -f /home/tecmint/downloads/xyz1.txt ] || {touch /home/tecmint/downloads/xyz.txt; echo "the file does not exist"} “the file does not exist”
总结
以上所述是小编给大家介绍的linux 中的命令链接操作符,希望对大家有所帮助
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