UNIX for Beginners Questions & Answers

./list1.txt
./list.txt
./temp.txt
./1_April_2011_Front0.txt
./1_April_2011_Front10.txt
./1_April_2011_Front11.txt
./1_April_2012_Front12.txt
./1_April_2011_Front13.txt
./1_April_2011_Front14.txt
./1_April_2011_Front15.txt
./1_April_2011_Front16.txt
./1_April_2011_Front17.txt
./1_April_2011_Front18.txt
./1_April_2011_Front19.txt
./1_April_2011_Front1.txt
./5_April_2012_Page323.txt
./6_August_2012_Page328.txt
./10_February_2014_Sportz6.txt
.....
.....

1_April_2012_Front16
5_April_2012_Page323
6_August_2012_Page328
15_August_2012_Sportz10
10_February_2014_Sportz6
.....
.....

5_April_2012_Page323.txt
6_August_2012_Page328.txt
10_February_2014_Sportz6.txt

counter=0;
for file in `cat FILE1.txt | awk -F'[/_.]' '{print $3$4$5$6}'` 
do
x=`echo "$file"` 
while read eachline
do
y=`echo "$eachline" | cat temp.txt | awk -F'[/_.]' '{print $1$2$3$4}'`
if [ "$x"=="$y" ]
then
cp -v $file /home/imran/Script/data
counter=$((counter+1))
break
fi
done < FILE2.txt
echo $counter
done

counter=0;
for f in `awk 'NR>2{print}' FILE1.txt` 
   do
     f3=$(echo $f|awk -F'/' '{print $2}');
     f6=$(echo "${f3%%.*}");    
   for g in `awk 'NR>=1{print}' FILE2.txt`
        do
           if [ "$f"=="$g" ]
           then
           cp $f /home/imran/Script/data
           counter=$((counter+1))    
           break;
           fi
       done
             echo $counter
  done

awk 'NR == FNR {T[$1]; next} {FN = $0; gsub (/^.*\/|.txt$/, _)} $0 in T {system ("echo cp " FN " /some/where")}' file2 file1
cp ./5_April_2012_Page323.txt /some/where
cp ./6_August_2012_Page328.txt /some/where
cp ./10_February_2014_Sportz6.txt /some/where

awk 'NR == FNR                         #### NR and FNR are the awk's inbuilt variables so condition NR==FNR willbe TRUE only when first file(file2) here will be read. Because FNR's value will be reset whenever a new file is being read but NR's value will be keep on increasing till the all files will be completed reading.
{T[$1];                                #### creating an array named T whose value is $1(first field).
next}                                  #### putting next(awk's inbuilt keyword) to skip all further statements now.
                                       #### All following statements will be read when second file named file1 is being read.
{FN = $0;                              #### creating a variable named FN whose value is $0(complete line).           
gsub (/^.*\/|.txt$/, _)}               #### gsub(awk's in-built functionality to globally subtitute the pattern in any line or variable, line here in this case. It will globally subsitutue everything till / (as per your requirement) with NULL.
$0 in T                                #### Now every line(which is formed by above subsitute command now) is present in array named T(which was created while file2 was getting read in NR==FNR condition).
{system ("echo cp " FN " /some/where") #### using system command(which is use to execute shell commands inside awk) executing echo command which will write the actually commands which we want to perform like cp source_file  Target_file in this case.
}' file2 file1                         #### Mentioning Input_files named file2 and file1 here.

awk '
NR == FNR       {T[$1]                                  # for the first file (NR id. to FNR), collect the names to search in T array
                 next                                   # stop processing this line; read next one
                }
                {FN = $0                                # second file only: save total file path in FN variable
                 gsub (/^.*\/|.txt$/, _)                # remove leading path info and ".txt" ext. from file name
                }
$0 in T         {system ("echo cp " FN " /some/where")  # IF the reduced file name is found in pattern array T, run the 
                                                        # system command to cp FN (full file path) to destination (echo inserted for safety)
                }
' file2 file1

awk '
NR == FNR       {T[$1]
                 next
                }
                {FN = $0 
                 gsub (/^.*\/|.txt$/, _)
                }
$0 in T         {print "cp", FN, "/some/where"
                }
' file2 file1 | sh

awk '
NR == FNR       {T[$1]
                 next
                }
                {FN = $0 
                 gsub (/^.*\/|.txt$/, _)
                }
$0 in T         {print FN
                }
' file2 file1 | xargs cp -t "/some/where"