Read a file data stream variable line-by-line andor field-by-field

Looping through a file line by line

Looping through the output of a command field by field

Read lines of a file into an array

Read lines of a string into an array

Looping through the output of a command line by line

Read a file field by field

Read a string field by field

Read fields of a file into an array

Read fields of a string into an array

Looping through a string line by line

Reads file etcpasswd line by line and field by field