This lets you easily search your command history by typing the beginning of a command and pressing the up arrow. bind '"\e[A": history-search-backward'

This lets you easily search your command history by typing the beginning of a command and pressing the up arrow. bind '"\e[A": history-search-backward' bind '"\e[B": history-search-forward' This one automatically lists the files in the current directory, but limits the number of lines. function cd { builtin cd "${@}" if [[ "$(stat -c "%b" .)" -lt "100" ]] then if [ "$( ls -C -w $COLUMNS | wc -l )" -gt 30 ] ; then ls -C -w $COLUMNS --color=always | awk 'NR < 16 { print }; NR == 16 { print " (... snip ...)" }; { buffer[NR % 14] = $0 } END { for( i = NR + 1; i <= NR+14; i++ ) print buffer[i % 14] }' else ls fi fi }