Использование grep
с PCRE:
$ grep -Po '.*(?=\s+[^\s]+$)' file.txt
1223 1234 1323 ... 2222
1233 1234 1233 ... 3444
0000 5553 3455 ... 2334
Использование GNU sed
:
$ sed -r 's/(.*)\s+[^\s]+$/\1/' file.txt
1223 1234 1323 ... 2222
1233 1234 1233 ... 3444
0000 5553 3455 ... 2334
Podrías simplemente usarfind
:
find. -type f -size 0 -exec echo "The logfile has a 0 size: {}" \;
find. -type f ! -size 0 -exec echo "The logfile does not have a 0 size: {}" \;
Operl
:
#!/usr/bin/perl --
use File::Find;
# directory to start looking for log files
my $dir = '/tmp/a';
# search base directory and call subroutine for each file found
find(\&size_check, $dir);
# subroutine to be called by find
sub size_check{
# check filename matches regex and is a file (not directory)
if($_ =~ /^.*\.log$/ and -f $_){
# call stat and put data into an array
my @stat = stat($_);
# check to see if the size is zero
if($stat[7] == 0){
print $_. " has a size of 0\n";
}else{
print $_. " has a ". $stat[7]. " size\n";
}
}
}