Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Bash Command To Delete Number from Array
Top Forums Shell Programming and Scripting Bash Command To Delete Number from Array Post 302852709 by drl on Thursday 12th of September 2013 07:36:38 AM
Old 09-12-2013
Hi.

Addressing the splitting of the file with standard utility csplit:
Code:
#!/usr/bin/env bash

# @(#) s1	Demonstrate splitting of file at /pattern/+-count, csplit.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C csplit

FILE=${1-data1}

# Remove debris from previous runs.
rm -f xx??

pl " Input data file $FILE:"
cat $FILE

pl " Current situation of resultant xx?? files (expecting none):"
ls xx??

pl " Results, counts of split file in characters:"
csplit -k -z $FILE '/Version/-1' '{*}'

pl " Current situation, and content of files:"
ls -lgG xx??
pe
head xx??

exit 0

producing:
Code:
$ ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian GNU/Linux 5.0.8 (lenny) 
bash GNU bash 3.2.39
csplit (GNU coreutils) 6.10

-----
 Input data file data1:
Unrelated stuff
Version something
No discernible pattern
Version otherwise

-----
 Current situation of resultant xx?? files (expecting none):
ls: cannot access xx??: No such file or directory

-----
 Results, counts of split file in characters:
34
41

-----
 Current situation, and content of files:
-rw-r--r-- 1 34 Sep 12 06:33 xx00
-rw-r--r-- 1 41 Sep 12 06:33 xx01

==> xx00 <==
Unrelated stuff
Version something

==> xx01 <==
No discernible pattern
Version otherwise

See man pages for details.

Best wshes ... cheers, drl
This User Gave Thanks to drl For This Post:
pmurray21
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

display the actual number of bash command interpreter

Hello everybody! I have a problem "Write script, which will display the actual number of bash command interpreter, working in the operating system." I used ps command to list all process running in the system but I don't know how to select only bash command interpreter. Pls give me some... (3 Replies)
Discussion started by: nguyendu0102
3 Replies

2. UNIX for Dummies Questions & Answers

Bash script to delete file input on command line

1) I wrote a script and gave the desired permissions using "chmod 755 scriptname". Now if i edit the script file, why do i need to set the permission again? Didn't i set the permission attribute.. or if i edit the file, does the inode number of file changes? 2) I am running my unix on a server... (1 Reply)
Discussion started by: animesharma
1 Replies

3. Shell Programming and Scripting

Bash - Loading a command's output line by line into an array

I have been trying this a lot of different ways and haven't found too much online. Here's what I've got so far: j=0 declare -a first zero=(`cat $tmpfile`) for i in "${zero}" do command $i >> "${first}" ... (4 Replies)
Discussion started by: Azrael
4 Replies

4. UNIX for Dummies Questions & Answers

How to delete lines above a certin line number in bash shell

Hi, I have written a script that returns the line number of the pattern i want and i stored the line number in a variable(getlinenumber).Now i want to delete all the lines in a file above this line number which is stored in a variable. i am using sed '1,$getlinenumberd' > file1.txt which is... (2 Replies)
Discussion started by: learninguser235
2 Replies

5. UNIX for Dummies Questions & Answers

How to delete lines above a certin line number in bash shell

Hi, I have written a script that returns the line number of the pattern i want and i stored the line number in a variable.Now i want to delete all the lines in a file above this line number which is stored in a variable. i am using sed '1,$getlinenumberd' > file1.txt which is not working(wrog... (5 Replies)
Discussion started by: learninguser235
5 Replies

6. Shell Programming and Scripting

Bash 3.2 - Array / Regex - IF 3rd member in array ends in 5 digits then do somthing...

Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help. pesudo code if == ENDSINFIVEINTS ]]; then do... (4 Replies)
Discussion started by: briandanielz
4 Replies

7. Shell Programming and Scripting

Bash arrays: rebin/interpolate smaller array to large array

hello, i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N. for case 1, I want to stretch N to fit M arrayHuge H = (... (2 Replies)
Discussion started by: f77hack
2 Replies

8. Programming

Bash script - find command with delete and exec

hi all, i have devised a script that starts in /restored/ and in there, there are a lot of sub folders called peoples names and in the sub folders are files/folders and it deletes the data in the sub folders BUT not the sub folder itself and it should then touch a file in all the sub folders... (3 Replies)
Discussion started by: robertkwild
3 Replies

9. UNIX for Beginners Questions & Answers

Need a Bash script for iterating thru an array and running a command

Hi , I am a total beginner so bear with me. I have the below code which works . I need to extend it by iterating thru the array arr and executing a command in each loop. some thing on the lines of below. I need to run this in a Jenkins script , so I would need below bash script to run... (6 Replies)
Discussion started by: SVRao19056
6 Replies

LEARN ABOUT DEBIAN

cmannotifyd

cmannotifyd(8)						     CMAN Notification Daemon						    cmannotifyd(8)

NAME

       cmannotifyd - CMAN Notification Daemon

SYNOPSIS

       cmannotifyd [-f] [-d]

DESCRIPTION

       The cmannotifyd daemon talks to CMAN and provides a mechanism to notify external entities about cluster changes.

       CMAN dispatches 3 kind of notifications:

       - CMAN_REASON_TRY_SHUTDOWN when cman requests to all clients if it is allowed to shutdown.

       - CMAN_REASON_STATECHANGE when cman detects a node joining or leaving the cluster.

       - CMAN_REASON_CONFIG_UPDATE when a configuration change event has been detected/requested.

       These notifications are then dispatched to the shell script cman_notify in the environment variable CMAN_NOTIFICATION.

       cman_notify will then execute all the scripts in the configured notification directory (default: /etc/cluster/cman-notify.d) passing a very
       minimal set of envvars including, of course, the CMAN_NOTIFICATION= type.  The execution order is set by the filename as shown by "LC_ALL=C
       ls -las".

       cmannotifyd logs are stored in the default log file (/var/log/cluster/cmannotifyd.log).

       cman_notify  logs are stored in the default log file (/var/log/cluster/cman_notify.log). By default the output from the scripts executed by
       cman_notify is redirected to /dev/null.	Users can either set CMAN_NOTIFICATION_DEBUG=1 in their environment or set proper debug configura-
       tion in cluster.conf to redirect scripts output to the cman_notify log file.

NOTES

       cmannotifyd does not block on cman_notify nor check the exit status of the script.

       Notifications are dispatched in the same order as they arrive, one by one.

       CMAN_REASON_TRY_SHUTDOWN  is  passed  to  scripts  for information only, they can not influence cman's decsion about whether or not to shut
       down.

       CMAN_REASON_STATECHANGE also implies CMAN_NOTIFICATION_QUORUM exported in the environment. CMAN_NOTIFICATION_QUORUM will be set to 1  (when
       the node is part of a quorate cluster) or 0 (otherwise).

       A template for cman_notify scripts can be found in the doc/ directory.

OPTIONS

       -f     Run in the foreground (do not fork / daemonize).

       -d     Enable debug output.

								   November 2008						    cmannotifyd(8)
All times are GMT -4. The time now is 07:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy