07-08-2002
you can do this
#!bin/sh
for file in `ls CD*`
do
sed -e 's/I/D/g' < $file > $file.out
mv $file.out $file
done
If you want to run it at a specific time, use the cron command there have been plenty of posts on this site about it already.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have file which has "A" character in more than 1000 lines and I want replace this "A" with "f". There is also "A" which I don't want to replace at the last line.
Currently, I use this script to replace them one by one
:g/A/s//f/g
Regards (2 Replies)
Discussion started by: mewalter
2 Replies
2. Shell Programming and Scripting
I have a 3 status option 1 , 4 , 6
1 - Active
4 - Temp..
6 - Deactive
I want to build a script which when it finds either of the status options (1,4,6), then returns the relevant string.
txs
:confused: (3 Replies)
Discussion started by: mewalter
3 Replies
3. Shell Programming and Scripting
Hi,
I made a build script for the product I am working on.
The script was made in the /bin/sh shell.
My first line in the script (after the #! /bin/sh and following # lines ) were,
if ; then
/bin/sh
fi;
It works well with my sh shell. I run the script as
sh build.sh
Now I... (9 Replies)
Discussion started by: vino
9 Replies
4. Shell Programming and Scripting
Hi all,
I had a typical problem.
I am using a parameter
PK="PK1 PK2 PK3"
i need to build the string
a.PK1=b.PK1 and a.PK2=b.PK2 and a.PK3=b.PK3
Please help (8 Replies)
Discussion started by: nkosaraju
8 Replies
5. Shell Programming and Scripting
Greets. I have a build system that comprises of one parent script and about 150 children to build Gnome. I have a file that is sourced at the top of every script to gather variables needed for the build. In this variables file, CFLAGS are set.
What I would like to do is do a quick check... (1 Reply)
Discussion started by: madpenguin
1 Replies
6. Shell Programming and Scripting
Hi All
I am trying to build a script that will take data from a tab separated file and use that to split up a quicktime file. So far the code is as follows
#!/bin/sh
#test parsing of data
#fix excel file output returns
cat $1 | tr "\r" "\n" > $1.fix
printf "\n" >> $1.fix
mv $1.fix $1
... (3 Replies)
Discussion started by: babajuma
3 Replies
7. Shell Programming and Scripting
Can someone take a look into script, where and what is going wrong in this. (4 Replies)
Discussion started by: baraghun
4 Replies
8. UNIX for Dummies Questions & Answers
Hi,
So I downloaded this kernel source and was able to build it successfully.
But I want to add this SDK source code inside, can anyone help me how to do this? Note that the SDK source can be built by itself.
I added the SDK in the main Makefile:
init-y := init/
#added SDK... (0 Replies)
Discussion started by: h0ujun
0 Replies
9. Shell Programming and Scripting
Hi
I have a build.xml file and I can run it on Windows via cmd. Now I want to write a script to invoke the same. Is there a way to do this? (1 Reply)
Discussion started by: ankur328
1 Replies
10. Shell Programming and Scripting
Okay, so this one is a bit above my knowledge level so I'm hoping for some pointers.
Here's the scenario:
I have a backup system on my network that makes single file images of the machines it's backing up and uses an sqlite database to keep track of everything. As is pretty typical with... (2 Replies)
Discussion started by: NyxPDX
2 Replies
CRON(8) System Manager's Manual CRON(8)
NAME
cron - clock daemon
SYNOPSIS
auth/cron [-c]
DESCRIPTION
Cron executes commands at specified dates and times according to instructions in the files /cron/user/cron. It runs only on an authentica-
tion server. Option -c causes cron to create /cron/user and /cron/user/cron for the current user; it can be run from any Plan 9 machine.
Blank lines and lines beginning with # in these files are ignored. Entries are lines with fields
minute hour day month weekday host command
Command is a string, which may contain spaces, that is passed to an rc(1) running on host for execution. The first five fields are integer
patterns for
minute 0-59
hour 0-23
day of month 1-31
month of year 1-12
day of week 0-6; 0=Sunday
The syntax for these patterns is
time : '*'
| range
range : number
| number '-' number
| range ',' range
Each number must be in the appropriate range. Hyphens specify inclusive ranges of valid times; commas specify lists of valid time ranges.
To run the job, cron calls host and authenticates remote execution, equivalent to running rx host command (see con(1)). The user's profile
is run with $service set to rx.
Cron is not a reliable service. It skips commands if it cannot reach host within two minutes, or if the cron daemon is not running at the
appropriate time.
EXAMPLES
Here is the job that mails system news.
% cat /cron/upas/cron
# send system news
15 8-17, 21 *** helix /mail/lib/mailnews
%
SOURCE
/sys/src/cmd/auth/cron.c
SEE ALSO
con(1), rc(1)
CRON(8)