79 lines
1.3 KiB
Plaintext
79 lines
1.3 KiB
Plaintext
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# A grep in perl - found somewhere in the depth of the internet...
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#
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# Usage: perlgrep.pl [OPTION]... PATTERN [FILE]...
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# OPTIONS:
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# -r Recursive search
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# -i Case insensitive
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use Getopt::Std;
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use File::Find;
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if ($#ARGV < 1) {
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&showUsage();
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}
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else
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{
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getopts('ir'); # Get the options
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# this assumes that all the options are before the REGEX
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while ($ARGV[0] =~ /^-/) { shift @ARGV } # Remove options from @ARGV array
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if ($#ARGV > 1) { $SHOW_FILENAME = 1 }
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$REGEX = shift @ARGV;
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$REGEX =~ s/^\///;
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$REGEX =~ s/\/$//;
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for ($i=0; $i <= $#ARGV; $i++) {
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if ($opt_r && -d $ARGV[$i]) {
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find(\&wanted, $ARGV[$i]);
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}
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else {
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if (-d $ARGV[$i]) {
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print "$0: $ARGV[$i] is a directory.\n";
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}
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if (-f $ARGV[$i]) { perlGrep($REGEX, $ARGV[$i]) }
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}
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}
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}
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sub showUsage {
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print <<END_OF_PRINT
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Usage: perlgrep.pl [OPTION]... PATTERN [FILE]...
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OPTIONS:
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-r Recursive search
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-i Case insensitive
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END_OF_PRINT
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}
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sub wanted {
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&perlGrep($REGEX, $File::Find::name);
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}
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sub perlGrep {
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$r = shift;
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$f = shift;
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$r =~ s/^m\///;
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$r =~ s/^\///;
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$r =~ s/\/$//;
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#$f = "/usr/include/$f";
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if (-T "$f") {
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open(FILE, $f) || warn "Cannot open $f: $!";
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while (<FILE>) {
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if (/$r/) {
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if ($SHOW_FILENAME) { print $f, ":" }
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print;
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}
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}
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}
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close(FILE);
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}
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