awk -F, 'END { print d, t }
!_[$1]++ && d { print d, t; d = t = "" }
{ d = $1; t += $2 }' OFS=\\= filename

$ printf "%s" "$somePath" | sed "s_$(printf "%q" "$highestLevel")__g"
/opt/content2/Transformers_The_Album/

$ printf "%s\n" "${somePath%/*}/"
/opt/content2/Transformers_The_Album/

$ printf "%s\n"

awk '{ 
for (f=2; f<=NF; f++)
  if (f != 3)
    x[$1] = x[$1] FS $f
} END {
for (k in x)
  print k x[k]
}' OFS='|' FS='|' file

grep -c '^[^#]' file

awk 'ORS=NR%3?RS:"\n"' RS="," filename

ubuntux% cut -c 1-14 file
00000237162724

% cut -c 29-39 file
55577818030

% cut -c 1-14,29-39 --output-delimiter=" "  file
00000237162724 55577818030

(rm file&&nl -s\) -w1>file)<file

awk '$0=++c")"$0' filenorman.thai>_tmp&&mv _tmp filenorman.thai

$ test=monkey
$ echo dog>file
$ test="$test $(<file)"
$ echo "$test"
monkey dog

awk '{
	print "INSERT INTO " a "profile_setup" a " " p a "user_id" a ", "a "profile_name" a ", " a "profile_number" a ", " a "profile_type" a p1 " VALUES";
	for(i=2;i<=7;i++)
			print p v $1 v ", " v "User Defined Profile" v ",

{ 
echo 'INSERT INTO `profile_setup` (`user_id`, `profile_name`, `profile_number`, `profile_type`)
VALUES'
awk '{for(i=2;i<=8;i++)
        print p v $1 v", "v"User Defined Profile"v", "i", "v"user_defined"v p1","
}' p="(" v="'" p1=")" filename
}

echo $(expr 3 + 5)

echo $((3+5))

echo `expr 3 + 5`

rm -- -ffree-node.c

rm ./-ffree-node.c

while IFS= read -r; do
	names[++i]="$REPLY"
done<your_file_here

entry1
entry2
entry3

while IFS= read -r; do
	names[((++i))]="$REPLY"
done<your_file_here

for i in "${names[@]}"; do
	printf "%s\n" "$i"
done

# or