发布时间：2018-03-17 13:54:56
例子：#!/bin/bash ##printf "the man is:\n"while read line donumber=$(echo ${line} | awk '{print $1}')name=$(echo ${line} | awk '{print $2}')birthday=$(echo ${line} | awk '{print $3}')gender=$(echo ${line} | awk '{print $4}') if [ "${gender}.........【阅读全文】
发布时间：2018-03-17 13:49:33
例子： #!/bin/bash _FILE_NAME_=$1 function read_file_1(){while read _LINE_doprintf "${_LINE_}\n"done < ${_FILE_NAME_}} function read_file_2(){cat ${_FILE_NAME_} | while read _LINE_doprintf "${_LINE_}\n".........【阅读全文】
发布时间：2018-03-17 10:34:09
例子：#!/bin/bash printf "Where are you from:\n"select place in "Bejing" "shenzhen" "shanghai" "shaoguan" "guangzhou"doprintf "you have select ${place}\n"if [ ${place} = "shaoguan" ];thenprintf "I'm from ${place}\n"breakfidone .........【阅读全文】
发布时间：2018-03-17 09:58:39
用法1：##printf "example 1:\n"for ((i = 0; i < 10; i++))doprintf "${i} "doneprintf "\n\n" 执行结果：example 1:0 1 2 3 4 5 6 7 8 9 用法2：##printf "example 2:\n"for i in $(seq 1 10)doprintf "$i "done.........【阅读全文】
发布时间：2018-03-15 23:28:29
1、二元比较操作符1.1、整数比较-eq 等于 如：if [ “$a” -eq “$b” ]-ne 不等于 如：if [ “$a” -ne “$b” ]-gt 大于 如：if [ “$a” -gt “$b” ]-ge 大于或等于 如：if [ “$a” -ge “$b” ].........【阅读全文】
