Sponsored Content
Top Forums UNIX for Dummies Questions & Answers When reading a csv file, counter to read 20 lines and wait for minute then read next 20 till end Post 302572153 by victor.s on Wednesday 9th of November 2011 09:17:46 AM
Old 11-09-2011
When reading a csv file, counter to read 20 lines and wait for minute then read next 20 till end

Hello All,
i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file.


Any inputs are appreciated

Victor
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

need to read a file and keep waiting till it satisfies some condition

In my script i am writing to a counter file the no of processes i had started, that is each time i start a process, i will increment the content of counter file and also when the process ends i will decrement the content of the file. after this i do some other activities, by now i want to... (1 Reply)
Discussion started by: senthilk615
1 Replies

2. Shell Programming and Scripting

Need to execute 2 scripts, wait, execute 2 more wait, till end of file

:cool: I need to execute a shell script to do the following: cat a file run two back ground processes using the first two values from the file wait till those background processes finish run two more background processes using the next two values from the file wait till those background... (1 Reply)
Discussion started by: halo98
1 Replies

3. Post Here to Contact Site Administrators and Moderators

how to read a file till it encounters a blank line

Hi , I want to read a file starting with "*" up to till it encounters a blank line and to redirect this output to a different file.Plz suggest how to write a script for this. e.g:- * PK Sent Email (11.23) CALYPSO 1243215 9116457 NEW TRAD FAILED Nov 23 2007 9:34AM OASYS: DPS:... (0 Replies)
Discussion started by: adityam
0 Replies

4. Shell Programming and Scripting

how to read a file till it encounters a blank line

Hi , I want to read a file starting with "*" up to till it encounters a blank line and to redirect this output to a different file.Plz suggest how to write a script for this. e.g:- * PK Sent Email (11.23) CALYPSO 1243215 9116457 NEW TRAD FAILED Nov 23 2007 9:34AM OASYS: DPS: SINGCORP invalid... (1 Reply)
Discussion started by: adityam
1 Replies

5. UNIX for Dummies Questions & Answers

how to read a file till it encounters a blank line

Hi , I want to read a file starting with "*" up to till it encounters a blank line and to redirect this output to a different file.Plz suggest how to write a script for this. e.g:- * PK Sent Email (11.23) CALYPSO 1243215 9116457 NEW TRAD FAILED Nov 23 2007 9:34AM OASYS: DPS: SINGCORP invalid... (1 Reply)
Discussion started by: adityam
1 Replies

6. UNIX for Dummies Questions & Answers

Read lines till a blank line is encountered

Hi, I have reached at a specified offset from the start of file. My requirement is that I want to read only those lines, which have the string READ / ALTER / UPDATE. As soon as, none of these literals are found in the subsequent line, I want to stop reading. Is there any feature of grep which... (1 Reply)
Discussion started by: saurabhsinha23
1 Replies

7. Shell Programming and Scripting

read file and print additional rows till current year

Hi all i have a file like 2006,1,2 2007,2,3 2008,3,4 I will read this and my output should be like 2006,1,2 2007,1,2 2008,1,2 2007,2,3 2008,2,3 2008,3,4 Giving the explanation, we will read the first line of the file and if the year any other than current year, we will print as many... (1 Reply)
Discussion started by: vasuarjula
1 Replies

8. Shell Programming and Scripting

Read Two lines in a CSV File and Compare

Hi , I have a CSV file ( file.csv) with some data as below: A,1,abc,x,y,z,,xyz,20100101,99991231 A,1,abc,x,y,z,234,xyz,20100101,99991231 I have to delete the duplicate line based on unique identifiers which are values in the fields- 2,3,4,8.These coulmns in both the rows have same... (6 Replies)
Discussion started by: Sheel
6 Replies

9. Shell Programming and Scripting

UNIX help to print 50 lines after every 3rd occurrence pattern till end of file

I need help with extract/print lines till stop pattern. This needs to happen after every 3rd occurrence of start pattern and continue till end of file. Consider below is an example of the log file. my start pattern will be every 3rd occurrence of ERROR_FILE_NOT_FOUND and stop pattern will be... (5 Replies)
Discussion started by: NSS
5 Replies

10. Shell Programming and Scripting

Read xml file till script finds separation and run again for next input and so on

Hi All, I have one query, I managed to run script with user inputs through command line or with 1 file. But I need to read a txt file/xml file in which user can mention multiple sets of answers and script should run for each set till it reach the EOF. Thanks in advance for example, the file... (3 Replies)
Discussion started by: rv_champ
3 Replies
CAT(1)							      General Commands Manual							    CAT(1)

NAME
cat, read, nobs - catenate files SYNOPSIS
cat [ file ... ] read [ -m ] [ -n nline ] [ file ... ] nobs [ file ... ] DESCRIPTION
Cat reads each file in sequence and writes it on the standard output. Thus cat file prints a file and cat file1 file2 >file3 concatenates the first two files and places the result on the third. If no file is given, cat reads from the standard input. Output is buffered in blocks matching the input. Read copies to standard output exactly one line from the named file, default standard input. It is useful in interactive rc(1) scripts. The -m flag causes it to continue reading and writing multiple lines until end of file; -n causes it to read no more than nline lines. Read always executes a single write for each line of input, which can be helpful when preparing input to programs that expect line-at-a- time data. It never reads any more data from the input than it prints to the output. Nobs copies the named files to standard output except that it removes all backspace characters and the characters that precede them. It is useful to use as $PAGER with the Unix version of man(1) when run inside a win (see acme(1)) window. SOURCE
/src/cmd/cat.c /src/cmd/read.c /bin/nobs SEE ALSO
cp(1) DIAGNOSTICS
Read exits with status eof on end of file or, in the -n case, if it doesn't read nlines lines. BUGS
Beware of and which destroy input files before reading them. CAT(1)
All times are GMT -4. The time now is 07:12 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy