From: Ian Kelling <ian@iankelling.org>
Date: Tue, 22 Apr 2014 07:16:21 +0000 (-0700)
Subject: ll-function initial version
X-Git-Url: https://iankelling.org/git/?a=commitdiff_plain;h=b372bf52841c5dde00ef51bdb07385a557f957e8;p=small-misc-bash

ll-function initial version
---

diff --git a/ll-function b/ll-function
new file mode 100644
index 0000000..fac9010
--- /dev/null
+++ b/ll-function
@@ -0,0 +1,88 @@
+#!/bin/bash
+# Copyright (C) 2014 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# ls -lA with enhanced formatting
+# octal permissions
+# omited acl type specifier
+# better hard link count: number of subdirectories or number of linked files or omitted if 0
+# better human readable size
+# more natural date/time format for my American raised eyes
+ll() {
+    local x y z q perm padding line binls sizePadding middle tail size
+    local -a lines
+    binls=$(type -P ls)
+    local first=true
+    local aclchar=false
+    # there's no way to tell if ls uses the acl specifier unless we loop over the data twice
+    # the 11th char is either
+    #  . for selinux context
+    #  + for any other kind of acl
+    #  or blank for no other kind of acl
+    #  I don't want to see this generally.
+    while read line; do
+        lines+=("$line")
+        [[ ! ${line:10:11} == " " ]] && aclchar=true
+    done< <( "$binls" -lAh --color=always "--time-style=+%m-%d-%y      
+%m-%d %I:%M %p" "$@" )
+    
+    for line in "${lines[@]}"; do
+	# very first line starts with some non printing chars
+	if $first; then
+	    line=${line#$'\E[00m'}
+	    first=false
+	fi
+	if ! [[ $line == [-dscbl][-r][-w][-xsS][-r][-w][-xsS][-r][-w][-xtT]* ]]; then
+	    printf "%s\n" "$line"
+	else
+	    perm=0
+	    for (( x=0; x<=8; x++ )); do
+		y=${line:$(( -1*x + 9 )):1}
+		[[ $y == [tT] ]] && perm=$(( perm + 512 ))
+		if [[ $y == [sS] ]]; then
+		    [[ $x == 3 ]] && perm=$(( perm + 1024 ))
+		    [[ $x == 6 ]] && perm=$(( perm + 2048 ))
+		fi
+		[[ $y != [-ST] ]] && perm=$(( perm + 2**x ))
+	    done
+            if $aclchar; then
+	        y="${line:11}"
+            else
+                y="${line:10}"
+            fi
+            t="${y#"${y%%[![:space:]]*}"}" # remove any initial spaces
+            hardLinks="${t%%[[:space:]]*}" # remove everything beyond first word
+            z=$(( ${#y} - ${#t} + ${#hardLinks} )) # length of hardlink string including padding
+	    middle=${y#*[^ ]* }
+	    size=${middle#*[^ ]* *[^ ]* }
+	    middle=${middle%"$size"}
+	    tail=${size#*[^ ]* }
+	    size=${size%"$tail"}
+	    declare -i sizePadding="${#size} - 1"
+	    size=( $size ) # remove spaces
+	    size=${size/.?/}
+            # ignore the hardlinks that files/dirs always have
+	    if [[ ${line:0:1} == d ]]; then
+                hardLinks=$(( hardLinks - 2 ))
+            else
+                hardLinks=$(( hardLinks - 1 ))
+            fi
+	    [[ $hardLinks == 0 ]] && hardLinks=
+	    printf "%s%4o%${z}s%s%${sizePadding}s%s\n" \
+		   "${line:0:1}" $perm "$hardLinks" " $middle" "$size" " $tail"
+	fi
+    done
+}
+