Search results: syntax in unix / linux

all unix commands come with arbitrary and mandatory functions. it is very common when you forget the full syntax of these commands.

the while loop gives you the ability to execute a set of repetitive commands until certain conditions occur. it is often used when you need to manipulate iterative variable

the for loop works on lists of items (items). it repeats a set of commands for each item in a list.

the while loop is perfect for the situation where you want to execute a set of commands while some conditions are true. sometimes you need to execute a set of commands until a

the select loop provides an easy way to create a numbered menu from which the user can select. it is useful when you want to ask the user to select one or more items from a list

when you work in a distribution environment then you need to communicate with remote users and you also need access to remote unix devices.