linux - Combine file modified date and "grep" results through "find", in one line

Question

We want to show each file's modified date and time when applying grep to selected files by the find command. The final result should look like:

2016-10-17 Mon 20:38:57 ./rest/47results.php: 5 :σχ?λια, ιδ?ε? facebook

Running the following from 47test.php file:

system('export TZ=":Europe/Athens"; find . -name "*.*" 
-not ( -path ./admin -prune ) 
-not ( -path ./people/languages -prune ) 
-not ( -path ./include -prune ) 
-type f -mmin -10 
-printf "%TY-%Tm-%Td %Ta %TH:%TM:%TS %p
" 
-exec grep -HTni "σχ?λια" {} + ');

we get distinct lines printed for each modified file and each line:

2016-10-17 Mon 21:09:55.0000000000  ./47test.php
2016-10-17 Mon 20:40:30.0000000000  ./places/00testout.txt
2016-10-17 Mon 20:38:57.0000000000  ./rest/47results.php
./47test.php:  22  :-exec grep -HTni "σχ?λια" {} + ');
./rest/47results.php:  5  :σχ?λια, ιδ?ε? facebook
./rest/47results.php:  6  :σχ?λια, ιδ?ε? twitter
./rest/47results.php:  7  :Τα σχ?λια σα?

One for each find and one for each grep result.

As mentioned in the beginning, how can one print sorted, combined results in just one line for each grep?

2016-10-17 Mon 21:09:55 ./47test.php  22  :-exec grep -HTni "σχ?λια" {} + ');
2016-10-17 Mon 20:38:57 ./rest/47results.php:  5  :σχ?λια, ιδ?ε? facebook
2016-10-17 Mon 20:38:57 ./rest/47results.php:  6  :σχ?λια, ιδ?ε? twitter
2016-10-17 Mon 20:38:57 ./rest/47results.php:  7  :Τα σχ?λια σα?

Answer 1

You can use this find+grep combination to get the formatted result:

while IFS=$'6' read -r -d '' t f; do
   sed "s/^/$t /" <(grep -HTni 'σχ?λια' "$f")
done < <(find . -type f -mmin -10 -not ( -path ./admin -prune ) 
         -not ( -path ./people/languages -prune ) 
         -not ( -path ./include -prune ) 
         -printf '%TY-%Tm-%Td %Ta %TH:%TM:%.2TS6%p')

• Note use of 6 as field delimiter to address filenames/paths with whitespaces/newlines etc.
• (NULL) is used as line terminator for the same reason.
• %.2TS is used to trip fractional part of the second value.
• sed is used to insert date/time at line start of grep output.

---

PHP Code:

$cmd = <<<'EOF'
export TZ=":Europe/Athens"; 
find . -type f -mmin -10 -not ( -path ./admin -prune ) 
       -not ( -path ./people/languages -prune ) 
       -not ( -path ./include -prune ) 
       -printf '%TY-%Tm-%Td %Ta %TH:%TM:%.2TS6%p' |
while IFS=$'6' read -r -d '' t f; do grep -HTni 'σχ?λια' "$f" | sed "s/^/$t /"; done
EOF;

// var_dump( $cmd );

echo shell_exec($cmd) . "
";