sudo port -v selfupdate

sudo apt-get install libmysqlclient15-dev
sudo gem install mysql -- --with-mysql-config --remote

while read line; do echo "${line}"; done < <(cat file.lst)

ps uax | grep "apache2 -k start" | grep -v grep | awk '{ s += $6 } END  { print "sum is", s/1024, "Mb"}'

To see any flags set

ls -lo

To recursively unlock files

chflags -R nouchg [files]

#!/bin/sh

HTTPD=/usr/local/apache2/bin/httpd
CONF=/bmi/httpd-php/conf/httpd.conf
                         
exec 2>&1
echo starting...
ulimit -v 100000
exec $HTTPD -f $CONF -D NO_DETACH

mkdir -p /Users/Shared/Desktop/homer/marge/bart/lisa/maggie/snowball2

#or, in a .bash_profile
alias mkdir="mkdir -p "

logrotate -fd /etc/logrotate.d/<logrotate conf file>

dd if=/dev/zero of=dummy.file bs=1000000 count=1

for i in `grep -rl "PATTERN" $DIR`; do rm -f $i; done;