Newbie needs help

[evild]

I have a script that I need to decifer...

#!/bin/csh
set the_mon_day = `date '+%m-%d'`
set date_fields=`date`
set dayofweek = $date_fields[1]
cd /aleph/u52_5/ccc50/print/
cp * /aleph/u52_5/alephe/ccc/print
set the_dir = `find . -name "save*" -type d | grep $the_mon_day`
cd $the_dir
mv -f c_b_001.let* "/aleph/u52_5/ccc50/print/z_c_b_001.$dayofweek"
mv -f c_i_002.let* "/aleph/u52_5/ccc50/print/z_c_i_002.$dayofweek"
mv -f c_r_001.let* "/aleph/u52_5/ccc50/print/z_c_r_001.$dayofweek"
mv -f c_r_105.let* "/aleph/u52_5/ccc50/print/z_c_r_105.$dayofweek"
mv -f s_b_001.let* "/aleph/u52_5/ccc50/print/z_s_b_001.$dayofweek"
mv -f s_r_001.let* "/aleph/u52_5/ccc50/print/z_s_r_001.$dayofweek"
mv -f s_r_105.let* "/aleph/u52_5/ccc50/print/z_s_r_105.$dayofweek"
mv -f t_b_001.let* "/aleph/u52_5/ccc50/print/z_t_b_001.$dayofweek"
mv -f t_r_001.let* "/aleph/u52_5/ccc50/print/z_t_r_001.$dayofweek"
mv -f t_r_105.let* "/aleph/u52_5/ccc50/print/z_t_r_105.$dayofweek"
cd /aleph/u52_5/ccc50/print/
mv -f c_a_001.rpt "/aleph/u52_5/ccc50/print/z_c_a_001.$dayofweek"
mv -f c_b_201.rpt "/aleph/u52_5/ccc50/print/z_c_b_201.$dayofweek"
mv -f c_r_201.rpt "/aleph/u52_5/ccc50/print/z_c_r_201.$dayofweek"
mv -f s_r_201.rpt "/aleph/u52_5/ccc50/print/z_s_r_201.$dayofweek"
mv -f t_r_201.rpt "/aleph/u52_5/ccc50/print/z_t_r_201.$dayofweek"



I need help with some of these lines:
I would like to know what
set the_mon_day = `date '+%m-%d'` does
and what
set the_dir = `find . -name "save*" -type d | grep $the_mon_day`
does.

i understand that a value is set to the_mon_day and then used in setting the_dir. But what does all the other bits like +%m-%d mean?

The script renames files to a new name with a new prefix and a new suffix (the day of the week).

Thanks in advance.

 

[Boria]

Hi,
date '+%m-%d' this day gives value 05-07, tomorrow give 05-08 and so on.
find . -name "save*" -type d | grep $the_mon_day
find (beginning current directory) file whose name beginning
with save and containing 05-07 (for today) into the name and this file is directory.
Regards Boris.

 

[mrn]

Vars

Add echos to display the output to screen

set the_mon_day = `date '+%m-%d'`
echo $the_mon_day
set date_fields=`date`
echo $date_fields
set dayofweek = $date_fields[1]
echo $dayofweek

All that is happening is that variables are being setup

E.g

a=1
b=10
c=20

you can then say a+b+c = 31

expr $(($a+$b+$c))

use man date to see all optional flags for date

do
date +%m


the script then changes directory to aleph/u52_5/ccc50/print/

and copies (cp) all (*) to /aleph/u52_5/alephe/ccc/print

the_dir finds all directories in the current directory called save, I break that down a little more

set the_dir = `find . -name "save*" -type d | grep $the_mon_day`

find . = find in current dir, you could use find / or find /usr to specify another directory.
-name "save" the name of the thing you are searching for
-type d the type you are searching for.

do

man find

to see other options

the script then changes directory to the one found above

and moves (mv) files (-f) to "/aleph/u52_5/ccc50/print/ will adding the date onto the end of the filename






--
| Mike Nixon
| Unix Admin
|
----------------------------

 

[evild]

what about these lines:

set date_fields = 'date'
set dayofweek = $date_fields[1]

What does $date_fields[1] mean?

since 'date' returns somethin like this:
Wed May 7 14:35:33 BST 2003

I assume that $date_fields[1] returns feilds 1 which would be 'Wed'?

Thanks for the replies so far

 

[tarn]

Arrays,like $date_fields[*] normally start at array[0], array[1], array[2] .... and so on, so by rights array $date_fields[1] would read May, Is this the bug you were looking for ?

L.

 

[evild]

just one more question for clirification...

`find . -name "save*" -type d | grep $the_mon_day`


this looks for a directory (type d) that has the word 'save' in the name and contains the value the_mon_day?

Does the grep look for the_mon_day inside the directory that has 'save' in the name, or does it seach in the directory name?

 

[dchoulette]

grep

looks for

$the_mon_day

in lines printed by

find

which print the name of the directories whose name starts with

save

.

So the whole command looks for directories with

save

and

$the_mon_day

in their name.

This should do the same:

find . -name "save*$the_mon_day*" -type d

 

[Salem]

Change the first line to

#!/bin/csh -x

Then run the script.

It's a bit like filling up the script with lots of 'echo' commands

Or you could do it from the command line
csh -x myscript