Sponsored Content
Full Discussion: Looping in awk
Top Forums UNIX for Advanced & Expert Users Looping in awk Post 22306 by LivinFree on Friday 31st of May 2002 04:04:11 AM
Old 05-31-2002
Well, since this is somehow my fault, I though it's only fair for me to pitch in... Smilie

If you like loops:
Code:
#!/usr/bin/sh

cd /opt/daybreakp/logs
file_list="accx24oac.log crbx01.log.X1 cssx108oac.log dbkx05.log dbkx12.log dbkx13.log glix10oac.log
salx17oac.log"

for r in 0 1 2 3 4 5 6; do
DAY[$r]=$(gdate --date="$r days ago" +%m/%d/%y)
done

for each in $file_list; do
  IFS=""
  while read line; do
   case $line in
    ${DAY[0]}*) echo $line ;;
    ${DAY[1]}*) echo $line ;;
    ${DAY[2]}*) echo $line ;;
    ${DAY[3]}*) echo $line ;;
    ${DAY[4]}*) echo $line ;;
    ${DAY[5]}*) echo $line ;;
    ${DAY[6]}*) echo $line ;;
   esac
  done < ${each} >/tmp/${each}.tmp
mv /tmp/${each}.tmp ${each}
done

If you like short code:
Code:
#!/usr/bin/sh
cd /opt/daybreakp/logs
file_list="accx24oac.log crbx01.log.X1 cssx108oac.log dbkx05.log dbkx12.log dbkx13.log glix10oac.log
salx17oac.log"

last_date=$(gdate --date="6 days ago" +%m/%d/%y)
for file in $file_list; do
sed -n "\#${last_date}#,\$p" $file > /tmp/${file}.tmp
mv /tmp/${file}.tmp $file
done

And I know there's got to be an even better way of doing this with sed by deleting everything above lines beginning with the date one week ago... I'm not sure if that made sense, but here is the format of those files:

05/30/02 INFO- blah blah blah
05/30/02 MORE INFO blah blah blah
[a few hundred lines similar to above]
05/31/02 SOME STUFF blah
05/31/02 MORE STUFF blap
[a few hundred more of those]

He's just trying to trim the old lines off the top of the file...
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk: looping problem!

I am having a problem with awk when I run it with a loop. It works perfectly when I echo a single line from the commandline. For example: echo 'MFG009 9153852832' | awk '$2 ~ /^0-9]$/{print $2}' The Awk command above will print field 2 if field 2 matches 10 digits, but when I run the loop... (5 Replies)
Discussion started by: cstovall
5 Replies

2. Shell Programming and Scripting

looping and awk/sed help

I am pretty new to this, but imagine what I am trying to do is possible iI am trying to make an automated DB comparison tool that selects all columns in all tables and compares them to the same thing in another DB. anyway I have created 2 files to help with this the first file is a... (13 Replies)
Discussion started by: Zelp
13 Replies

3. Shell Programming and Scripting

Urgent - Looping using AWK

Hi I have a file which is having following text. The file is in a tabular form with 5 fields. i.e field1, field2 ..... field5 are its columns and there are many rows in it say COUNT is the number of rows Field 1 Field2 Field3 Field4 Field5 ------- ------- ... (8 Replies)
Discussion started by: skyineyes
8 Replies

4. UNIX for Dummies Questions & Answers

Help with AWK looping

I'm trying to parse a configuration text file using awk. The following is a sample from the file I'm searching. I can retrieve the formula and recipe names easily but now I want to take it one step farther. In addition to the formula name, I would like to also get the value of the attribute... (6 Replies)
Discussion started by: new2awk
6 Replies

5. Shell Programming and Scripting

looping in awk

How do I remove last comma? echo "xx yy zz" | awk 'BEGIN{FS=" "}{for (i=1; i<=NF; i++) printf "%s,", $i}'output: xx,yy,zz, required output: xx,yy,zz or (ideally!): xx, yy & zz many thanks in advance! (4 Replies)
Discussion started by: euval
4 Replies

6. Shell Programming and Scripting

Looping within the elements of a file using awk

Hi all, I have a file containing 5000 rows and 4 columns. I need to do a loop within the rows based on the values of column 3. my sample data is formatted like the ones below: what i need to do is to make a loop that will allow me to plot the values of x,y,values corresponding to month 1 to month... (10 Replies)
Discussion started by: ida1215
10 Replies

7. Shell Programming and Scripting

AWK looping over 2 variables

I would like to loop over variables i and j consecutively, { a = -6.7 b = 7.0 c =0.1 { for (i = 0; i<=(b-a)/c; i++) for (j = 1; j<=(b-a)/c; j++) '$1<=(a+j*c)&&$1>=(a+i*c)' FILENAME > output_j '{print $2}' output_j > output_j_f } I essentially want to print the range of $1... (9 Replies)
Discussion started by: chrisjorg
9 Replies

8. Shell Programming and Scripting

Looping through pairs of files with awk

Hi all, please help me construct the command. i want to loop through all files named bam* and bed*. My awk works for a particular pair but there are too many pairs to do manually. I have generated multiple files in a folder in a given pattern. The files are named like bam_fixed1.bam... (2 Replies)
Discussion started by: newbie83
2 Replies

9. Shell Programming and Scripting

Help on looping using awk

I have the data like this: PONUMBER,SUPPLIER,LINEITEM,SPLITLINE,LINEAMOUNT,CURRENCY IR5555,Supplier1,1,1,83.1,USD IR5555,Supplier1,1,3,40.4,USD IR5555,Supplier1,1,6,54.1,USD IR5555,Supplier1,1,8,75.1,USD IR5556,Supplier2,1,1,41.1,USD IR5556,Supplier2,1,3,43.1,USD ... (3 Replies)
Discussion started by: jeffreybsu
3 Replies

10. Shell Programming and Scripting

awk nested looping?

I am trying to parse a text file and send its output to another file but I am having trouble conceptualizing how I am supposed to do this in awk. The text file has a organization like so: Name Date Status Location (city, state, zip fields) Where each of these is on a separate line in... (1 Reply)
Discussion started by: kellyanneghj
1 Replies
FAXCRON(8)						      System Manager's Manual							FAXCRON(8)

NAME
faxcron - HylaFAX routine maintenance script SYNOPSIS
/usr/sbin/faxcron [ -n ] [ -l lastrun ] DESCRIPTION
faxcron is a command script that does routine upkeep tasks in a HylaFAX spooling directory hierarchy. This script is intended to be invoked from cron(8) on behalf of the fax user (often the ``fax'' user is uucp) once a day, with the standard output sent by mail to the HylaFAX administrator. For example, the following crontab might be set up for the fax user: 25 23 * * * sh /usr/sbin/faxcron | mail FaxMaster The faxcron script does the following work: o report statistics for facsimile transmitted since the last time faxcron was run. o report statistics for facsimile transmitted in the past week. o report statistics for facsimile received since the last time faxcron was run. o report statistics for facsimile received in the past week. o report any recent calls that failed suspiciously and return the associated trace log; o purge data that is 30 days or older from the remote machine information directory; o delete information that is 30 days or older from session trace log files; o remove files from the tmp directory that are older than 1 day; o remove files in the received facsimile queue that are 7 days or older; o report sites that are currently having jobs rejected; and o force all session log files to be owned by the fax user and kept with protection mode 644. OPTIONS
-n Forces faxcron to run without updating any files. -l lastrun Forces the notion of the last time that faxcron was run to be lastrun. The value of lastrun is a date and time string of the form ``MM/DD/YY HH:MM'' (the date(1) format string ``%D %H:%M''). -info n Set the expiration time for data in the info database to be n days. -log n Set the expiration time for session log data to be n days. -rcv n Set the expiration time for files in the received facsimile queue to be n days. -tmp n Set the expiration time for files in the tmp directory to be n days. -mode m Set the file protection mode for session logs to m (a command line argument to chmod(1)). NOTES
This script requires nawk(1) or gawk(1) and a date (1) program that supports the ``+format'' option. If session logs are to be kept private this script must be modified to filter out sensitive information such as calling card numbers. (It should also be run with ``-mode 0600'' so that session log files are not publicly readable.) FILES
/var/spool/hylafax spooling area /var/spool/hylafax/status/lastrun timestamp of last run /usr/sbin/xferfaxstats for generating transmit statistics /usr/sbin/recvstats for generating receive statistics /var/spool/hylafax/tmp/faxcronXXXX temporary file for truncating session logs /var/spool/hylafax/tmp/faxlogXXXX temporary file for logs of failed calls SEE ALSO
cron(8), faxq(8), faxgetty(8), faxsend(8), xferfaxstats(8), recvstats(8), hylafax-server(5) May 12, 1996 FAXCRON(8)
All times are GMT -4. The time now is 03:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy