Sponsored Content
Top Forums UNIX for Beginners Questions & Answers How to make a loop to read the input from a file part by part? Post 303038092 by RudiC on Saturday 24th of August 2019 04:28:55 PM
Old 08-24-2019
This
Code:
split --version
split (GNU coreutils) 8.30

seems to have the filter receive the split input lines on its stdin.
Try
Code:
split -l25 --filter="command-to-create-workspaces params" ws-userlist.txt

These 3 Users Gave Thanks to RudiC For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

read in part of the file into another file

Hi, I justs started learning Unix on my own. I have a question: What command can I use when I need to read in part of the file into another file? I remember I saw it somewhere but I don't know what it is. Thanks (3 Replies)
Discussion started by: whatisthis
3 Replies

2. Shell Programming and Scripting

comparing part of header with part of detailed records.

Hi there, I am lil confused with the following issue. I have a File, which has the following header: IMSHRATE_043008_101016 a sample detailed record is :9820101 A982005000CAVG030108000000000000010169000MAR 2008 9820102 MAR 2008 D030108 ... (1 Reply)
Discussion started by: cmaroju
1 Replies

3. UNIX for Dummies Questions & Answers

Replacing part of a text file with user input.

Ok, I am brand new to UNIX and I am trying to learn a cross between basic script and database use. I had got some ideas off the net on simple ideas for learning UNIX. I am working on creating a simple phone book program that allows myself to enter our employees from work into a phone book text... (0 Replies)
Discussion started by: georgefurbee
0 Replies

4. Shell Programming and Scripting

How to select or make reference to, part of a field

For a field format such as AAL1001_MD82, how do I select(and use in if statement) only the last four elements( in this case MD82) or the first three elements (in this case AAL)? For instance, how do I do the following - if first three elements of $x == yyy, then ... (5 Replies)
Discussion started by: akshaykr2
5 Replies

5. Shell Programming and Scripting

To Read a File and Insert a part of the lines into the database

Hi Guys I need to have a shell script which reads a log file and insert a part of each line into the database. Some sample lines in the file are as below. 20091112091359 MED_RQACK : user_data=60173054304,100232120,20091112091359,;ask_status=0;ask_reason=OK;msg_id=20091112091319... (5 Replies)
Discussion started by: Somanadh
5 Replies

6. Shell Programming and Scripting

[Solved] Printing a part of the last line of the specific part of a file

Hi, I have 80 large files, from which I want to get a specific value to run a Bash script. Firstly, I want to get the part of a file which contains this: Name =A xxxxxx yyyyyy zzzzzz aaaaaa bbbbbb Value = 57 This is necessary because in a file there are written more lines which... (6 Replies)
Discussion started by: wenclu
6 Replies

7. Shell Programming and Scripting

make loop from input file

Hi Guys, I have file A.txt PP97 PP66 PP87 PP66 PP47 PP57 PP44 PP20 PP66 PP16 PP13 PP51 PP68 PP70 PP75 PP30 (2 Replies)
Discussion started by: asavaliya
2 Replies

8. Shell Programming and Scripting

Use while loop to read file and use ${file} for both filename input into awk and as string to print

I have files named with different prefixes. From each I want to extract the first line containing a specific string, and then print that line along with the prefix. I've tried to do this with a while loop, but instead of printing the prefix I print the first line of the file twice. Files:... (3 Replies)
Discussion started by: pathunkathunk
3 Replies

9. Shell Programming and Scripting

Read file and add it into part of file

Hello let me explain senario. there is a file which name is config and it store main software variable: file main.conf contents: update="1" log_login="0" allow_ports="" deny_ports="21,22,23" and there is a file which name is ports.txt file ports.txt contents: 25,26,27 i... (3 Replies)
Discussion started by: nimafire
3 Replies

10. Shell Programming and Scripting

Read file input in while loop does not work on AIX system

I'm working on Aix 6.1 and using ksh shell. The below works fine on Linux bash or ksh shell . while IFS= read -r dirpath ; do echo "Hi" done <<<"$var" However, any such while loop that reads the input from file or variable using <<< fails on Aix system with the below error: Below... (2 Replies)
Discussion started by: mohtashims
2 Replies
SPLIT(1)						    BSD General Commands Manual 						  SPLIT(1)

NAME
split -- split a file into pieces SYNOPSIS
split [-a suffix_length] [-b byte_count[k|m]] [-l line_count] [-p pattern] [file [name]] DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each. If file is a single dash ('-') or absent, split reads from the standard input. The options are as follows: -a suffix_length Use suffix_length letters to form the suffix of the file name. -b byte_count[k|m] Create smaller files byte_count bytes in length. If ``k'' is appended to the number, the file is split into byte_count kilobyte pieces. If ``m'' is appended to the number, the file is split into byte_count megabyte pieces. -l line_count Create smaller files n lines in length. -p pattern The file is split whenever an input line matches pattern, which is interpreted as an extended regular expression. The matching line will be the first line of the next output file. This option is incompatible with the -b and -l options. If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci- fied, two letters are used as the suffix. If the name argument is not specified, the file is split into lexically ordered files named with the prefix ``x'' and with suffixes as above. ENVIRONMENT
The LANG, LC_ALL, LC_CTYPE and LC_COLLATE environment variables affect the execution of split as described in environ(7). EXIT STATUS
The split utility exits 0 on success, and >0 if an error occurs. SEE ALSO
csplit(1), re_format(7) STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A split command appeared in Version 3 AT&T UNIX. BUGS
The maximum line length for matching patterns is 65536. BSD
August 21, 2005 BSD
All times are GMT -4. The time now is 08:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy