ascii lists ASCII idiomatic names and octal/decimal code-point forms. It provides easy conversion between various byte representations and the American Standard Code for Information Interchange (ASCII) character table. It knows about a wide variety of hex, binary, octal, Teletype mnemonic, ISO/ECMA code point, slang names, XML entity names, and other representations. Given any one on the command line, it will try to display all others. Called with no arguments, it displays a small, handy ASCII chart.
grepcidr can be used to filter a list of IP addresses against one or more Classless Inter-Domain Routing (CIDR) specifications, or arbitrary networks specified by an address range. As with grep, there are options to invert matching and load patterns from a file. grepcidr is capable of comparing thousands or even millions of IPs to networks with little memory usage and in reasonable computation time. It has endless uses in network software, including mail filtering and processing, network security, log analysis, and many custom applications.
Cock provides a digital version of a petcock. A petcock is a valve or faucet used to drain pressure, as from a boiler. Cock drains I/O pressure from the kernel. Without parameters, the output rate automatically adjusts; cock defers output when necessary in order to mitigate I/O spikes. Otherwise, a numeric parameter specifies megabytes per second.
Data Shovel Pinnacle Performance Utilities is a collection of utilities for large input/output tasks. bare takes line feed-separated file names on standard input and concatenates the file contents on standard output. baresha512 takes line feed-separated file names on standard input and provides the SHA512 message digest for the concatenated file content on standard output. Both can optionally open and read files with O_DIRECT, bypassing the kernel's block cache. cock provides a digital petcock. It relives I/O pressure on the kernel by rate limiting data throughput. It can auto-throttle to mitigate lag spikes, or use a specified megabytes-per-second rate limit.
mhvtl is a Linux-based virtual tape library. Supported tape emulations are IBM and HP LTO1, 2, 3, 4, and 5, Sony AIT4, STK T10000A, B, and C, and STK 9x40. It supports WORM, data, and cleaning media. Most applications work using STK L180/L700 library emulation. It has been successfully used with NetBackup, BackupExec, NetWorker, TSM, Oracle Secure Backup, and many other programs.