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| Author |
Some Unix Questions
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| David McGeorge 2004-03-28, 10:35 pm |
| How can I list contents of a directory and all of its subdirectories,
providing full details, but only regular files that haven't been
accessed in the last 2 days?
How can I delete all files older than 1 year from a directory?
What utility would you use to swap columns 1 and 2 in a text file?
How can I replace a string "2001" for "2002" in a text file?
Howe can I cut off the first column in a text file?
Thanks a lot.
__________________
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| Alan Connor 2004-03-28, 11:38 pm |
| On 28 Mar 2004 19:30:03 -0800, David McGeorge <soalvajavab1@yahoo.com> wrote:
>
>
> How can I list contents of a directory and all of its subdirectories,
> providing full details, but only regular files that haven't been
> accessed in the last 2 days?
>
> How can I delete all files older than 1 year from a directory?
>
> What utility would you use to swap columns 1 and 2 in a text file?
>
> How can I replace a string "2001" for "2002" in a text file?
>
> Howe can I cut off the first column in a text file?
>
> Thanks a lot.
>
>
>
> __________________
Well, you actually DO the reading you were assigned in class, and then
you'll know.
Or be close, anyway.
Then you give it a shot and post your efforts here for commentary.
Not going to learn how to use Nix if you aren't very comfortable with
a lot of reading, and forever....
AC
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| Ed Morton 2004-03-29, 11:36 am |
|
David McGeorge wrote:
> How can I list contents of a directory and all of its subdirectories,
> providing full details, but only regular files that haven't been
> accessed in the last 2 days?
man ls
man find
man stat
> How can I delete all files older than 1 year from a directory?
man rm
man find
man stat
> What utility would you use to swap columns 1 and 2 in a text file?
man sed
man awk
man cut
> How can I replace a string "2001" for "2002" in a text file?
man sed
man awk
man read
man echo
man print
man printf
> Howe can I cut off the first column in a text file?
man sed
man awk
man read
man echo
man print
man printf
> Thanks a lot.
You're welcome. Feel free to coma back with any questions when you've
attempted the solutions.
Regards,
Ed.
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| Kade Hodges 2004-04-15, 4:38 am |
| soalvajavab1@yahoo.com (David McGeorge) wrote in message news:<bc907f76.0403281930.209c93bc@posting.google.com>...
> How can I list contents of a directory and all of its subdirectories,
> providing full details, but only regular files that haven't been
> accessed in the last 2 days?
>
> How can I delete all files older than 1 year from a directory?
>
> What utility would you use to swap columns 1 and 2 in a text file?
>
> How can I replace a string "2001" for "2002" in a text file?
>
> Howe can I cut off the first column in a text file?
>
> Thanks a lot.
>
>
>
> __________________
You are using Linux?
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| In article <3e1398a2.0404150040.7aa05a54@posting.google.com>, Kade Hodges wrote:
> soalvajavab1@yahoo.com (David McGeorge) wrote in message news:<bc907f76.0403281930.209c93bc@posting.google.com>...
find . -type f -mtime -2 -ls
[vbcol=seagreen]
find . -mtime +365 -print | xargs rm -f
[vbcol=seagreen]
awk '{ tmp=$1 ; $1 = $2 ; $2 = tmp ; print }'
[vbcol=seagreen]
sed 's/2001/2002/g' < file > file.new
[vbcol=seagreen]
man cut
perl -e 'while(<> ) { @a = split(" "); shift(@a); print join(" ", @a), "\n";'
[vbcol=seagreen]
>
> You are using Linux?
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