Any command in Linux returns 0 for success and a non zero integer for failure). The example below shows how: You see, we checked for the variable value 50. Login or Register for Dates, Times and to Reply Thread Tools: Search this Thread: Top Forums Shell Programming and Scripting break while loop in BASH # 1 wakatana. 9.2.1. Following are the topics, that we shall go through in this bash for loop tutorial.. n is the number of levels of nesting. The output: The [n] parameter is optional and allows you to specify which level of enclosing loop to exit, the default value is 1. #!/bin/sh while ! 9 We will read the contents of the text file line by line by using the while loop and display its content as follows:

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