====== Shell: ls ======
\\

sort files by time
<file bash>
ls -lt
</file>

sort files by size
<file bash>
ls -lS
</file>

directory seen as standard file
<file bash>
ls -ld

# ls -ld /bin
drwxr-xr-x  2 root  wheel  1024 Nov 22 15:45 /bin

# ls -ld /*
-r--r--r--   1 root  wheel  6197 Nov 22 15:45 /COPYRIGHT
drwxr-xr-x   2 root  wheel  1024 Nov 22 15:45 /bin
drwxr-xr-x   9 root  wheel  1536 Nov 22 15:56 /boot
dr-xr-xr-x  11 root  wheel   512 Nov 22 16:56 /dev
-rw-------   1 root  wheel  4096 Nov 22 15:56 /entropy
drwxr-xr-x  27 root  wheel  2560 Nov 29 07:18 /etc
lrwxr-xr-x   1 root  wheel     8 Oct 28  2015 /home -> usr/home
drwxr-xr-x   4 root  wheel  1536 Nov 22 15:54 /lib
drwxr-xr-x   3 root  wheel   512 Nov 22 15:45 /libexec
[...]
</file> 

we can add to /etc/csh.cshrc
<file bash /etc/csh.cshrc>
alias   ls      ls -k
# long list
alias   ll      ls -lah
alias   dir     ls -lah
# sort by size
alias   ll-s     ls -Sl
# sort by time
alias   ll-t     ls -lt
# show dirs as file
alias   ll-d     ls -ld


setenv  CLICOLOR
</file>


use <color #ed1c24>-r</color> for reverse sort, es:
<file bash>
ls -lSr
</file>



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