Differences

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--- bash [2009/01/05 19:35]
a
+++ bash [2009/01/14 10:30]
a
@@ Line 1: / Line 1: @@
-If you just want to find out what's new in a directory:
+===== .barshrc =====
-lsnew() { ls -lt ${1+"$@"} | head -20; }
+<code |f .barshrc>
-**.barshrc**
-<code bash|>
 function os {
       export OPER_SYS_1="`uname -s`"
@@ Line 13: / Line 10: @@
       echo -e "\033[32mKernel:\033[0m $KERN_INFO"
       }
-</code>
-<code bash|>
 function hw () {
    export MOBO_MAN="`sudo dmidecode --type baseboard | grep 'Manufacturer' | cut -d' ' -f2-`"
@@ Line 35: / Line 30: @@
     alias system="os &amp;&amp; hw"
+==== If you just want to find out what's new in a directory ====
+   lsnew() { ls -lt ${1+"$@"} | head -20; }
+===== Scripts =====
+==== Diff Two Directories ====
+<code bash|f diff2.sh>
+#!/bin/bash
+cr='*'
+if [ -z $3 ]; then cr=$3; fi
+for f in `find $1/$3 -type f | sed "s|$1/||"`
+do
+  printf "===!%-76s" "$f!" | tr ' !' '= '; echo
+  diff $1/$f $2/$f | sed -e "s/^</$1: /" -e "s/^>/$2: /"
+done
+</code>
+===== Bash misc stuff =====
+==== $RANDOM not random at all ====
+instead of $RANDOM use ..
+  SEED=$(head -c4 /dev/urandom | od -t u4 | awk '{ print $2 }')
+  ((N=SEED%N))
+or
+  SEED=$(head -1 /dev/urandom | od -N 1 | awk '{ print $2 }')
+  ((N=SEED%N))