Divide string into seperate entries 4

[TSch]

Hi folks,

I'm facing the following challenge:

There's a file containing a string looking like that:

203;202;204;205;207;206;208

The length of this string is changing from time to time.

Now what I'd like to do is to separate this string like this:

203
202
204
205
207
206
208

And perform certain actions on each of those numbers ...

Any idea what would be an elegant way to accomplish this ?

Regards
Thomas

 

[PHV]

A starting point:

tr ';' '\n' </path/to/input >output

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[feherke]

Hi

Supposing $str holds your input string and taking your request literally :

echo [green][i]"$str"[/i][/green] [teal]|[/teal] tr [green][i]';'[/i][/green] [green][i]'[/i][/green][lime][i]\n[/i][/lime][green][i]'[/i][/green]

Personally I would simply [tt]read[/tt] it into an array. But this works only with [tt]bash[/tt] :

[blue]IFS[/blue][teal]=[/teal][green][i]';'[/i][/green] [COLOR=chocolate]read[/color] -a x [teal]<<<[/teal] [green][i]"$str"[/i][/green]

Or would just loop through it. This works in [tt]bash[/tt] and [tt]ksh[/tt] too ( notice the semicolon ( ; ) after the $str ) :

[b]while[/b] [COLOR=chocolate]read[/color] -d [green][i]';'[/i][/green] x[teal];[/teal] [b]do[/b]
  echo [green][i]"$x"[/i][/green][teal];[/teal]
[b]done[/b] [teal]<<[/teal]ENDOFTEXT
[navy]$str[/navy][teal];[/teal]
ENDOFTEXT

Another way would be to "consume" the string piece by piece ( notice again the necessity of trailing semicolon ) :

[navy]str[/navy][teal]=[/teal][green][i]"$str;"[/i][/green]
[b]while[/b] [teal][[[/teal] [green][i]"$str"[/i][/green] [teal]]];[/teal] [b]do[/b]
  echo [green][i]"${str%%;*}"[/i][/green]
  [navy]str[/navy][teal]=[/teal][green][i]"${str#*;}"[/i][/green]
[b]done[/b]

Feherke.

http://free.rootshell.be/~feherke/

 

[PDreyer]

tr ';' '\n'

 

[TSch]

Thanks a lot for the quick responses !
That was exactly what I needed.

 

[SamBones]

Another one using IFS...

#!/bin/ksh

STRING="203;202;204;205;207;206;208"

IFS=';'

for NUM in ${STRING}
do
    print "Numer is: ${NUM}"
done