Hopefully, these examples have demonstrated the power of aforloop at the Bash command line. You really can save a lot of time and perform tasks in a less error-prone way with loops. Just be careful. Your loops
When given one ormore filenames on the command line, this program uses the strings program (which isincluded in the GNU binutils package) to generate a list of readable text “words” in eachfile. The for loop processes each word in turn and determines if the current word is thelongest ...
2.forLoop Command Firstly, let’s quickly refresh onforloops: $ for i in /home/*; do echo "$i"; done /home/user1 /home/user2 Here,we list the files and directories in the/homedirectory viaglobbingand iterating through the result. ...
1if[ -d"$file"] 在Linux中,目录名和文件名中包含空格当然是合法的。要适应这种情况,应该将 $file 变量用双引号圈起来。如果不这么做,遇到含有空格的目录名或文件名时就会有错误产生。 1./test6: line6: [: too many arguments2./test6: line9: [: too many arguments 在test命令中,bash shell会将额...
《Linux Command Line and Shell Scripting Bible》Part 13 更多的结构化命令(for while until) for命令 基本语法格式 for var in list do commands done 也可以写成 for var in list; do commands done 读取列表中的值 1 2 3 4 5 6 7 8 9
/bin/bashfor((i=0;i<1;i+=0))doecho"infinite loop"done 1. 2. 3. 4. 5. while循环 和for循环一样,while循环也是一种运行前测试语句,语法更简单: whileexpressiondocommanddone 1. 2. 3. 4. 首先while将测试expression的返回值,如果返回值为真则执行循环体,返回值为假则不执行循环。循环完成后进入...
jtag-loop.sunxi ARM native boot helper to force the SD port into JTAG and then stop, to ease debugging of bootloaders. sunxi-bootinfo Dump information from Allwinner boot files (boot0/boot1) --type=sd include SD boot info --type=nand include NAND boot info (not implemented) ...
comm Compare two sorted files line by line command Run a command - ignoring shell functions ? continue Resume the next iteration of a loop ? cp Copy one or more files to another location cron Daemon to execute scheduled commands crontab Schedule a command to run at a later time csplit Split...
Command-line toolInstallation:You can install the swiftformat command-line tool on macOS or Linux using Homebrew. Assuming you already have Homebrew installed, just type:$ brew install swiftformatTo update to the latest version once installed:...
} } }#endregion#regionParallel_LoopstaticvoidMultiplyMatricesParallel(double[,] matA,double[,] matB,double[,] result){intmatACols = matA.GetLength(1);intmatBCols = matB.GetLength(1);intmatARows = matA.GetLength(0);// A basic matrix multiplication.// Parallelize the outer loop to partitio...