Index / Unix
FreeBSD has two different shells in the base system. sh(1) is a Bourne type POSIX compatible shell and the default for new users. tcsh(1) on the other hand is an advanced version of the C shell and the default for the root user.
I use sh for both scripting and interactive use. Here follow some tips and tricks that I have found useful.
This is actually a feature of ls(1). Color listings can be permanently
enabled by setting the environment variable
CLICOLOR, the actual
colors used can be defined with the environment variable
Here is what I have in my
export CLICOLOR="1" # ls(1) attr.key:1122334455667788990011 export LSCOLORS="Exfxcxdxbxegedabagacad"
Many seem to think that this is impossible in sh, but the trick is
to use the
^V[ESC] key combination to insert the necessary escape
sequences. (Control-V followed by pressing Escape.)
Here is the simple prompt that I have in my
^[ represent the escape character. Note that it is a
single character even though
vi(1) will visually present it as two
This page by Fabien Loison covers all the ANSI/VT100 formating control sequences in great detail.