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The avobe explanation is correct, for delimeter in awk use -F and use the value of "nth" filed. For runtime variable assing that variable also. using -v option.
awk -vvar=5 -F" " 'NR==10 {print...

Check this one
echo 9/8/2013 | awk -F/ '{printf "%s%02s%02s\n", $3, $2, $1}'

Storing values in an array is bad idea , better to do some operation with that

for var in ` grep -n pattern file_name | cut -f 1 -d ":" `; do
echo "it has line number:$var" #do your operations...

add a variable for count '5'

for var in $cont
do
echo $var
num=`expr $num + 1`
if [ $num -eq 5 ];then
sleep 2
num=0
fi
done

Use backquote " ` " rather single quote " ' "
for i in 1 2 3 4 5
do
y=`expr $i + 1`
echo $y
done

Hey try with this

echo /Users/imac1/Music/iTunes/iTunes 20Media/Music/The%20Rolling%20Stones/Forty%20Licks%20%5BDisc%202%5D/2-13%20Keys%20To%20Your%20Love.mp3 | sed 's/%[0-9]*/_/g'

Could you please give output of jhead , also what pattern you want to format from the output??:confused:

just make use this type code may helpful.:D
cat jpeg.sh
#!/bin/sh
for input in `ls -1...

Try
awk 'BEGIN{FS=OFS=","}{print $1,$2,$3*2.2,$4 }' file.txt

Try this with back quotes ( ` ` )in the command line argument
$date +"%d/%m/%Y"
08/10/2010

Hi it is something
${parameter:-val}
if parameter is not set then use the value of val as a default . Here it is Null.

with the help of cut and paste you can get the result
$cut -f3 file7.txt >temp1.txt
$cut -f3 file8.txt >temp2.txt
$paste temp1.txt temp2.txt >file.txt

# BUNDLE=/home/bob/flx/user.bun
#basename $BUNDLE

Put that startup.sh file in .bashrc file.
which is in your home directory.