UNIX Shell Programmer's Interactive - Paperback, by Vickery Christopher - Good

UNIX Shell Programmer's Interactive Workbook

The Unix C Shell Field Guide by Gail Anderson: Used

Unix Programmer's Reference - Paperback, by Valley John - Acceptable

Unix Awk and Sed Programmer's Interactive Workbook by Peter Patsis

UNIX Programmer's Manual Vol. 5 Languages and Support Tools Book Reference

Unix Awk and Sed Programmer's Interactive Workbook

Learning the bash Shell: Unix Shell - Paperback, by Newham Cameron - Acceptable