• tzls and tzx – Quick extraction and content-listing for archives such as tar.gz files
• fff and ffl – Quick, case-insensitive file-find with unquoted wildcards
• bd – Backup with Date appended. Copy the specified file(s) to the same name, but with a textual date/time appended
• nss – New (Bourne) Shell Script. Creates a skeletal shell script

http://uk.geocities.com/perdenab/shelltools/index.html