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Shell Programming and Scripting

Text string modification

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# 8  
Old 11-10-2009
Shorter Smilie
Code:
echo 1234567890 | awk '{print $1$2$3$4"-"$5$6$7"-"$8$9$10}' FS=

# 9  
Old 11-10-2009
Quote:
Originally Posted by danmero
Shorter Smilie
Code:
echo 1234567890 | awk '{for(i=0;++i<=NF;)printf ((i~/4|7/)?"-"$i:$i)}' FS=

Although you write with shorter code, but the code is not more useful, if the input file has more than 1 line. Smilie

Code:
$ cat urfile 
1234567890
0987654321

$ awk '{for(i=0;++i<=NF;)printf ((i~/4|7/)?"-"$i:$i)}' FS= urfile
123-456-7890098-765-4321

And I don't understand why not use "for(i=1;i<=NF;i++)". Just for shorter code?

All other commands, which are run by awk, sed and echo, are still correct.

Code:
$ awk '{print substr($0,1,3),substr($0,4,3),substr($0,7,4)}' OFS="-" urfile
123-456-7890
098-765-4321

$ sed 's/\(.\{3\}\)/&-/1;s/\(.\{7\}\)/&-/' urfile
123-456-7890
098-765-4321

# 10  
Old 11-10-2009
Quote:
Originally Posted by rdcwayx
Although you write with shorter code, but the code is not more useful, if the input file has more than 1 line. Smilie
Ops, right Smilie
Code:
awk '{for(i=0;++i<=NF;)printf ((i~/4|7/)?"-"$i:((i==NF)?$i RS:$i))}' FS= file

# 11  
Old 11-10-2009
Code:
# echo 1234567890| gawk -vFS= '{$3=$3"-";$6=$6"-"}1' OFS=
123-456-7890

# 12  
Old 11-13-2009
thank you
is there a setting I can change so that I can get notified via e-mail after every new post and not just the first reply?
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