lib.sh - Library of shell functions

Usage:

Load commands to shell:

• . lib.sh

Run a command with subshell:

• lib.sh <command> <arguments...>
• lib_help - shows help for Lib.sh

List of available commands:

• ps-all - lists all processes
• ps-threads - lists processes with threads
• ps-tree - lists process tree via ps, see also pstree -p
• ps-cpu - lists most CPU consuming processes
• ps-mem - lists most memory consuming processes
• default-eth - provides default Ethernet interface
• external-ip - Provides external IP
• ps-wchan - shows what processes are waiting for, used in debugging blocked processes
• ls-size - list files with sizes in bytes, shorter than ls -l
• mplayer-rotate-right - play video rotated right, used to play vertically captured videos
• hist - handy history, up to one screen length
• deb-list - list content of specified deb file
• quotation-highlight - highlight text in quotation marks ("quotation")
• keyboard-shortcuts - bash keyboard shortcuts. See also man readline.
• tcpdump-text - tcpdump of payload in text
• make-debug - verbose make
• git-diff - handy git diff
• git-prompt - sets shell prompt to show git branch
• git-fixup - interactive fix up of specified number of last git commits
• git-ign-add - add files' names with path to appropriate .gitignore list
• log - safely prints messages to stderr
• trap-err - traps command failures, print return value and returns, better than set -o errexit
• system-status-short - shows short summary of system resources (RAM,CPU) usage
• system-status-long - shows long system status and statistics by running various system utilities
• shell-type - tries to identify type of current shell
• ps-of - specified process info
• proc-mem-usage - returns percentage memory usage by specified process
• dir-diff - compare listings of two specified directories
• retry - retry argument operation till success
• duplicates - finds duplicate files. To follow symbolic links run duplicate -L $DIR
• for-each - applies an operation to set of arguments one by one
• str - readable string manipulations: ltrim, ltrim-max, rtrim, rtrim-max, subst, subst-all
• postfix-extract - return filename postfix: path/name[-_]postfix.ext -> postfix
• unzip-dir - handy unzip to directory with name of zip-file
• mac-to-ip - looks for LAN IP for MAC
• ip-to-mac - show MAC address for specified IP in LAN
• fs-usage - show biggest directories and optionally files on a filesystem, for example on root: fs-usage -a /
• PATH-append - prints PATH in readable format
• PATH-insert - inserts argument to head of PATH, if required
• PATH-remove - removes argument from PATH
• PATH-append - prints PATH in readable format
• gcc-set - set specified [cross] compiler as default in environment
• gcc-set - set specified [cross] compiler as default in environment
• get-source - download and unpack an open source tarball
• get-source - download and unpack an open source tarball
• gnu-build - universal complete build and install of gnu package
• alternative-config-build - build of package, alternatively to gnu-build
• build-env - configure staging build environment
• glib-arm-build - demonstration of arm compilation of glib from the scratch
• staging-dir-fix - fix parameter libdir in *.la files in staging cross-compilation directory
• mem-drop-caches - drop caches and free this memory. Practically not required
• gdb-print-prepare - prepares gdb script to print variables and structs at runtime
• wget-as-me - Run wget with cookies from firefox to access authenticated data
• calc - calculate with bc specified floating point expression
• md5sum-make - create md5 files for each specified file separately
• check - runs verbosely specified command and prints return status
• lib-sh-demo - run lib.sh functions for demonstration and testing
• doxygen-bootstrap - generic handy doxygen wrapper
• load-watch - kills memory and cpu hogs when load average is too high
• dts-tags - extacts tags (ctags format)from device tree source files