One-line While loop example: The code above will instruct your system to run command1, command2, command3, and command4 continually until the condition turns to “True.” Example 1: Infinite While loop in a shell script An infinite While loop means your script will run the loop commands ...
Bash while Loop in One Line It is always a good practice to use fewer lines of code. The while loop in Bash also offers a one-liner structure. The syntax of Bash while loop as a one-liner is given below: while [condition]; do commands_to_execute; done Let’s implement the above e...
Bash For Loop In One Line with Files # for i in *; do echo "Found the following file: $i"; done # for i in `cat filelist.txt`; do echo ${i}; done; if a line may include spaces better use a while loop: # cat filelist.txt | while read LINE; do echo "${LINE}"; done ...
Why you can use a bash for loop in one line If you use bash on the command line, this will not guarantee that for loops are inserted into the script. In order to prevent this, it is easiest to use loops directly on the command line and then there will be no problems. How to use...
Bash For Infinite Loop In one Line # for (( ; ; )); do echo "Hello World!"; done # while true; do echo "Hello World!"; done # while :; do echo "Hello World!"; done Bash For Loop In One Line with Files # for i in *; do echo "Found the following file: $i"; done ...
Bash For Loop In One Line with Files 代码语言:txt AI代码解释 # for i in *; do echo "Found the following file: $i"; done # for i in `cat filelist.txt`; do echo ${i}; done; if a line may include spaces better use a while loop: ...
三元表达式bash for循环语法这种for循环与C编程语言有一个共同的传统。...${countNameservers} nameservers defined in ${file}" break fidone 使用continue语句若要继续封闭FOR、WHILE或UNTIL循环的下一个迭代...总结您通过各种示例学习了如何使用bash for loop。 For循环可以节省时间,并可以帮助您自动完成微小的...
";done#whiletrue;doecho"Hello World!";done#while:;doecho"Hello World!";done Bash For Loop In One Line with Files #foriin*;doecho"Found the following file:$i";done#foriin`catfilelist.txt`;doecho${i};done;if a line may include spaces better use a while loop:#catfilelist.txt |...
while IFS= read -r _; do ((count++)) done < "$1" printf '%s\n' "$count" } 用法示例: $ lines ~/.bashrc 48 $ lines_loop ~/.bashrc 48 计算目录中的文件或目录 这是通过将glob的输出传递给函数然后计算参数的数量来实现的。 示例功能: ...
while-loop 将运行直到表达式测试为真。will run while the expression that we test for is true. 关键字"break" 用来跳出循环。而关键字"continue"用来不执行余下的部分而直接跳到下一个循环。 for-loop表达式查看一个字符串列表 (字符串用空格分隔) 然后将其赋给一个变量: ...