Using File Descriptors - English
BASH Tutorials - English 23
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1
Introduction to BASH Shell Scripting -
2
Basics of Shell Scripting
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3
Command Line arguments and Quoting
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4
Globbing and Export statement
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5
Array Operations in BASH
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6
More on Arrays
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7
Conditional execution
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8
Nested and multilevel if elsif statements
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9
Logical Operators
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10
Arithmetic Comparison
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11
String and File attributes
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12
Conditional Loops
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13
More on Loops
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14
Case statement
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Using File Descriptors
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16
Basics of functions
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17
More on functions
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18
Arrays and functions
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19
Advance topics in a function
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20
Recursive function
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21
Basics of Redirection (error handling)
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22
More on Redirection
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23
Here document and Here string
Outline:
Using File Descriptors Introduction on fd Assign the file descriptor (fd) to file for output(exec fd > filename) Explained using an example of 'date' and 'echo' Closing the output fd(exec fd<&-) Explaination on error for the statements defiened after closing fd Assign the file descriptor (fd) to file for input(exec fd < filename) Closing the input file descriptor(exec fd<&-) Explaination on input fd using 'cat'