$ gem install kv 

# View [FILE] $ kv [OPTIONS] [FILE] # View [URI] source code $ kv [URI] # View results of [CMD] $ [CMD] | kv [OPTIONS] # View command help $ kv --help Usage: kv [options] -f following mode like "tail -f" -n, --line-number LINE goto LINE -N Show lines -T, --time-stamp Enable time stamp -e CMD Run CMD as a child process -p, --pipe Open named pipe -s Separation mode (tsv) -w Watch mode: Reload on file changed --filter-command=FILTER_COMMAND Apply filter command 

kv: A pager by Ruby Command list ?: show the help message q: quit # Moving k, j, [UP], [DOWN]: move cursor (y) h, l, [LEFT], [RIGTH]: move cursor (x) Ctrl-U, [PAGE UP]: page up Ctrl-D, [PAGE DOWN], [SPACE]: page down g: Goto first line G: Goto last line (current last line) \d+: Goto specified line # Loading You can load a huge file or infinite input from a pipe. 10,000 lines ahead current line will be loaded. If you want to load further lines the follwoing commands will help you. F: Load remaining data or monitor a specified file and scroll forward. Pushing any keys stops loading. If a search string (specified by commadn "/") is specified, stop scroll if the further input lines contains the string. L: Toggle unlimited input mode # Searching /: search When you enter a search string, you can choose the following mode by Control key combination: Ctrl-R: toggle Regexp mode (Ruby's regexp) Ctrl-I: toggle ignore case mode To clear search string, research with an empty string. n: search next p: search preview f: filter mode (show only matched lines) # Output s: Save screen buffer to file P: gist -p # Child process You can run child process using -e command line option like -e CMD and you can send a meesage to the child process with x command. x: send a message to the child process # Modes N: toggle line mode T: toggle time stamp mode m: toggle mouse mode t: terminal (REPL) mode v: vi ("vi filename +[LINE]") H: show HTTP response header