Xless

X11-based viewer for text files

This is a port of xless version 1.7, a handy text file viewer for X. Useful as a viewer tool for other apps e.g., xfm, the X file manager, or as a standalone viewer. Presents a scrollable text window both vertical and horizontal scrolling, with a number of clickable buttons.

From the README file

FEATURES Display either the files specified on the command line or input from standard input, supplied by a pipe. File/pipe may be optionally monitored so that the display is continuously updated as new text is added. Display new files in the current window or by creating a new window. Reload or print the displayed file. Search the displayed file using either exact, case-insensitive, or regular expression patterns. Edit the displayed file with your favorite editor as specified in the VISUAL or EDITOR environment variable