On 4/14/2008 3:53 AM, r wrote:
> Readers,
>
> I am reading a tutorial, to learn how to use awk (http://
> www.grymoire.com/Unix/Awk.html).
>
> I've copied the following text and saved in the filenames shown:
>
> fileowner:
>
> #!/bin/sh
> awk'
> BEGIN {print"file\towner"}
> {print $8,"\t",$3}
> END {print "-done-"}
> '
>
> fileowner2:
>
> #!/bin/sh
> awk '
> BEGIN { print "File\tOwner" }
> { print $8, "\t",
> $3}
> END { print "done"}
> '
>
> fileowner3:
>
> #!/bin/sh
> column=$1
> awk '{print $column}'
>
>
> Below is my various command terminal errors:
>
> $ awk -f fileowner.awk
> awk: fileowner.awk:2: awk'
> awk: fileowner.awk:2: ^ invalid char ''' in expression
> $ awk -f fileowner2
> awk: fileowner2:2: awk '
> awk: fileowner2:2: ^ invalid char ''' in expression
> $ ls -l|Column 3
> bash: Column: command not found
What's "Column"?
> $ ls -l|fileowner3
> bash: fileowner3: command not found
>
> Regarding the fileowner file, I obtained the same error both when the
> filename has no suffix and when the suffix is .awk. Subsequently I did
> not use .awk farther. What am I doing wrong?
>
> Yours,
>
> gnu mandriva 2008
> gnome 24
It's got nothing to do with the file suffix. Change your files to this:
fileowner.awk:
BEGIN {print"file\towner"}
{print $9 "\t" $3}
END {print "-done-"}
fileowner2:
BEGIN { print "File\tOwner" }
{ print $9 "\t" $3}
END { print "done"}
fileowner3:
#!/bin/sh
awk -v column="$1" '{print column}'
Then make fileowner3 executable and do this in the directory where you
created
the files:
$ ls -l | awk -f fileowner.awk
$ ls -l | awk -f fileowner2
$ ls -l | ./fileowner3 3
Regards,
Ed.
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