grep "$1" *.c grep "$1" adb/* grep "$1" as/* grep "$1" awk/* grep "$1" bas/* grep "$1" c/* grep "$1" cpp/* grep "$1" dc/* grep "$1" eqn/* grep "$1" f77/* grep "$1" learn/* grep "$1" lex/* grep "$1" lint/* grep "$1" lpr/* grep "$1" m4/* grep "$1" make/* grep "$1" mip/* grep "$1" neqn/* grep "$1" pcc/* grep "$1" plot/* grep "$1" prep/* grep "$1" ratfor/* grep "$1" refer/* grep "$1" roff/* grep "$1" sed/* grep "$1" sh/* grep "$1" spell/* grep "$1" struct/* grep "$1" tar/* grep "$1" tbl/* grep "$1" tp/* grep "$1" troff/* grep "$1" uucp/* grep "$1" xsend/* grep "$1" yacc/*