The following simple shell script, lookfor , uses to look for all files in the specified directory hierarchy that have been modified within a certain time, and it passes the resulting names to to scan for a particular pattern. For example, the command:
would search through the entire /work filesystem and print the names of all files modified within the past week that contain the words "tamale" or "enchilada". (So, for example: if this article is stored on /work , lookfor should find it.)
The arguments to the script are the pathname
of a directory hierarchy to search in (
#!/bin/sh temp=/tmp/lookfor$$ trap 'rm -f $temp; exit' 0 1 2 15 find $1 -mtime $2 -print > $temp shift; shift for word do grep -i "$word" `cat $temp` /dev/null done
The next version is more limited but faster.
It builds a regular expression for
that finds all the words in one pass through the files.
If you use too many words,
#!/bin/sh where="$1" when="$2" shift; shift # Build egrep expression like (word1|word2|...) in $expr for word do case "$expr" in "") expr="($word" ;; *) expr="$expr|$word" ;; esac done expr="$expr)" find $where -mtime $when -print | xargs egrep -i "$expr" /dev/null