list of levels. For example: dmesg --level=err,warn will print error and warning messages ... higher levels. For example: dmesg --level=err+ will print levels err , crit , alert an…Valid level names are: emerg alert crit err warning notice info debug panic deprecated synonym ... emerg error deprecated synonym for err warn deprecated synonym for warning For th…emerg" (0), "alert" (1), "crit" (2), "err" (3), "warning" (4), "notice" (5), "info" (6), "debug ... order of decreasing importance) emerg , alert , crit , err , warning , notice , …strings emerg , alert , crit , err , warning , notice , info , debug ; see syslog (3) for details ... order of decreasing importance) emerg , alert , crit , err , warning , notice …order of decreasing importance) emerg , alert , crit , err , warning , notice , info , debug , or an integerdoes not recognize "/dev/std{in,out,err}". Some systems provide an actual device for thisDEBUG and RETURN traps), and the ERR trap is not inherited unless the -o errtrace ... shell does not exit. A trap on ERR , if set, is executed before the shellorder of decreasing importance) emerg , alert , crit , err , warning , notice , info , debug , or an integerorder of decreasing importance) emerg , alert , crit , err , warning , notice , info , debug , or an integerorder of decreasing importance) emerg , alert , crit , err , warning , notice , info , debug , or an integerokay to err on the side of caution, causing the bundle file to contain objectsmessages. Pass one of "emerg", "alert", "crit", "err", "warning", "notice", "info", "debug", or a valueorder of decreasing importance) emerg , alert , crit , err , warning , notice , info , debug , or an integerorder of decreasing importance) emerg , alert , crit , err , warning , notice , info , debug , or an integer