line done 使用while循环 while read -r line do echo $line done < filename While循环中read命令从标准输入中读取一行,并将内容保存到变量...line中。...在这里,-r选项保证读入的内容是原始的内容,意味着反斜杠转义的行为不会发生。输入重定向...
How to do a do-while loop in bash? How to create an infinite loop in bash? How to find if a number is odd or even in bash? How to iterate over a bash array? How to loop over each line of a file? How to iterate over a list of files? How to use numbers with leading zeros...
Thewhileloop is the best way to read a file line by line in Linux. If you need to read a file line by line and perform some action with each line – then you should use awhile read lineconstruction in Bash, as this is the most proper way to do the necessary. In this article i ...
Let us suppose we want to run a specific command in each folder and file of a directory. For that purpose, we will iterate through all directories using loops. Only a few CLI utilities or command line utilities allow us to run the same command for multiple files. But in our case, we ...
Using for loop to read filenames of a directory recursively with condition Running the loop until the file exists Using for loop based on the output of package list command Using for loop to read each line of a file Using for loop to read each line of a file based on a conditional mat...
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 ...
1. Using for ... in statement 2. Using for ((exp1, exp2, exp3)) statement The result will be: 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...
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 ${i}; done; if a line may include spaces better use a while loop: ...
forOUTPUTin$(Linux-Or-Unix-Command-Here)docommand1 on $OUTPUT command2 on $OUTPUT commandNdone Examples This type of for loop is characterized by counting. The range is specified by a beginning (#1) and ending number (#5). The for loop executes a sequence of commands for each member in...
If it is false, the loop is terminated. If the TEST is true, commands inside the body of the for loop are executed, and the STEP part is updated. In the following example code, the loop starts by initializing i = 0, and before each iteration, checks if i≤ 10. If true, it ...