Productive Linux
ACPI administration advocacy advocacy advocacy opinion alsa apache apple apt aptitude audio authentication awk bash BIOS boot business cache calendar censorship commandline cron database debian desktop development disk dvd economics emacs email europe exim files firefox firewall flash foss freedom ftp fun git grub hardware hardware html images installation ipod kde kernel keyboard knoppix laptop latex linux locale lockin longlines microsoft minitab mplayer multimedia mysql network nfs openbox openoffice opinion opinion partition pdf perl php politics postgresql printing privacy rant rxvt script scripting scsi security sed server shell siteadmin sitenews sitesoftware skype skype slackware sound spam ssh statistics subversion sudo svk swap t23 t43 terminal text thinkpad thunderbird time timezone ubuntu upgrade users versioncontrol video windows wine wordpress wordprocessing X40 xwindows xwindows youtube
Here's a way to a line of text to all files in a directory:
sed ' /text on previous line/ a\ text to be inserted after ' files
Red Hat Certified Technician & Engineer (RHCT and RHCE) Training Guide and Administrator's Reference
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