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1. 取出2nd 和7th 字母 cut -c2,72. 取出2nd - 7th字母cut -c 2-7也可以cut -c -7cut -c 2-3. 按tab分割cut -d $'\t' -f1-34. head / tail 命令head -n 22 | tail -n 115. tr 命令tr "()" "...

Arrays in Bash参考 https://www.thegeekstuff.com/2010/06/bash-array-tutorial/ https://coderinme.com/basic-bash-concepts-part-9-arrays-with-solved-hackerrank-problems/array=($(cat))echo ${array[@...

1. 显示字符串Echo “String” 2. for 循环for((i = 1; i < 100; i += 2))do echo $idone参考 https://www.garron.me/en/articles/bash-for-loop-examples.html3. 接受输入 readread nameecho "Welco...