;
; Sed: How to do a recursive find/replace of a string?
; find . -type f -print0 | xargs -0 sed -i 's/old/new/g'
;

; trim line
tr -d ' '

; sed directory
find . -type f -print0 | xargs -0 sed -i 's/88299008866/88299008890/g'

; sed input file
grep -r -l auth-user-pass * | xargs sed -i 's/auth-user-pass/auth-user-pass auth.txt/g'

sed -i 's/ugly/beautiful/g' /home/bruno/old-friends/sue.txt