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String operation in csh AIX 4.3.2.0

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Top Forums Shell Programming and Scripting String operation in csh AIX 4.3.2.0
# 1  
Old 02-22-2017
String operation in csh AIX 4.3.2.0
Hi to everybody
i stuck on a simple thing i had a string and i want cut it , i try already few thing with the cut command but does not the way it should.
The script is in csh and running on AIX 4.3.2.0

here are few samples how the string can look like

Code:
FT71;1;1;1;;;1;31.01.2017 11:12:24;0
FT71;1;1;1;2;;1;31.01.2017 11:12:24;0
FT71;1;1;1;2;2;1;31.01.2017 11:12:24;0

The string should be cut always after the 7. delimiter even if there are no number between two delimiters like in sample 1 and 2 . That maybe the reason it doesnot works with the cut command.

Thanks a lot in advance




Moderator's Comments:
Mod Comment Start using code tags, thanks.
Last edited by rbatte1; 02-24-2017 at 01:17 PM.. Reason: Removed SIZE in code block
# 2  
Old 02-22-2017
Moderator's Comments:
Mod Comment Sorry for moving around your thread, i wrongly thought it deals with the same problem as your other thread.


Quote:
Originally Posted by Nadielosabra
The string should be cut always after the 7. delimiter even if there are no number between two delimiters like in sample 1 and 2 . That maybe the reason it doesnot works with the cut command.
This is actually exactly the way cut works:

Code:
# printf "\"%s\"\n" $(echo "1;2;3;;;6;7;8" | cut -d';' -f1)
"1"
# printf "\"%s\"\n" $(echo "1;2;3;;;6;7;8" | cut -d';' -f4)
""

You probably didn't interpret the returned empty string as a result, like i did above in the little proof of concept.

Anyway, i strongly suggest you stop using csh and start using a less bugridden shell. AIX 4.3.2 (you might want to consider updating this to 4.3.3 ML12 too) offers a ksh88 and a ksh93.

I hope this helps.

bakunin
Last edited by bakunin; 02-22-2017 at 08:31 AM..
This User Gave Thanks to bakunin For This Post:
Nadielosabra
# 3  
Old 02-22-2017
You are working with the same data as in your other thread, looks like.

Another way to do it is
Code:
$ echo "FT71;1;1;1;;;1;31.01.2017 11:12:24;0" | awk '{ NF=6 } 1' FS=";" OFS=";" -

FT71;1;1;1;;

$

This has no benefits over cut if that's all you're doing... but if you're doing 93 more transformations on the data before you're done with it, they could all be rolled up in one awk call instead of 93 more shell externals.
This User Gave Thanks to Corona688 For This Post:
Nadielosabra
# 4  
Old 02-23-2017
Hi Corona688,

thanks a lot for your help and Support,

Yes you are right the same string was in the other thread and your solution works perfect .
the cut on the string has to done every Iteration the change of the bit only has to done depending on some condition.


But the solution for the cut does not works on my side

Code:
 awk '{ NF=6 } 1' FS=";" OFS=";" $PATH_FILE > $TEMP_FILE

both file are the same , any ides what could be wrong

thanks in advanced
Last edited by rbatte1; 02-24-2017 at 01:16 PM.. Reason: Removed font formatting in CODE block
# 5  
Old 02-23-2017
Quote:
Originally Posted by Nadielosabra
But the solution for the cut does not works on my side
The routine is always the same: please post some sample of your input and a terminal session with some command executed on this data and its oucome: error messages, return codes, diagnostics and whatever is there.

Something like this:

I can't seem to make the ls-command work:
Code:
root@system # ls -l /bla/foo/file
/bla/foo/file not found
root@system # echo $?
2

Such a transcript i can analyse and would tell you that you probably mistyped the filename or some part of its path name. Telling me just "ls -l didn't work" i wouldn't be able to tell you anything.

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
Nadielosabra
# 6  
Old 02-24-2017
Show field 8 and higher
Code:
cut -d";" -f8- file

This User Gave Thanks to MadeInGermany For This Post:
Nadielosabra
# 7  
Old 02-25-2017
Thanks for your help

I guest i found the reason why the cut and awk doesn't work on my Project.
The file has only one line with without an CR.
If i just add an CR to this line both cut and awk works as from you recommented.
My Problem now the other process which create this text file will not add an CR to the this line

I'll Play around , hopefully i will found a solution for it

Kind regards
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