Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Problem with xargs
Top Forums Shell Programming and Scripting Problem with xargs Post 302936582 by Corona688 on Thursday 26th of February 2015 01:02:22 PM
Old 02-26-2015
But actually, head does pretty much what you want already. When you feed it multiple files, it labels them.

Code:
$ head -n 1 /etc/passwd /etc/passwd /etc/passwd /etc/passwd
==> /etc/passwd <==
root:x:0:0:root:/root:/bin/bash

==> /etc/passwd <==
root:x:0:0:root:/root:/bin/bash

==> /etc/passwd <==
root:x:0:0:root:/root:/bin/bash

==> /etc/passwd <==
root:x:0:0:root:/root:/bin/bash

...so you can just do xargs head -v -20 < zzz.list to get something divided up and labelled. The -v guarantees it gets labelled even if it's only given one file.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Problem using find and xargs

I'm using Imagemagick to create thumbnails for a large directory tree. The only thing I can't see is how to get it to write the thumbnails to a "thumbs" subdirectory! Either of these two commands from the Imagemagick site does most of the job: find -name '*.jpg' | xargs -n1 sh -c 'convert $0... (5 Replies)
Discussion started by: quixote
5 Replies

2. Shell Programming and Scripting

problem with "xargs rm -i"

Hi, I could not understand why the following command does not work find . -name "foo" | xargs rm -i but, find . -name "foo" | xargs rm works perfectly alright. (3 Replies)
Discussion started by: royalibrahim
3 Replies

3. UNIX for Dummies Questions & Answers

problem with grep in combination with xargs

Dear all, I have tried the following 2 lines xargs -t -i -exec grep -i -w {} file_1 >>test < file_2 cat -s file_2| xargs -t -i -exec grep -i -w {} file_1 >> test They were meant to search for the contents of file_2 in file_1 and write the respective lines of file_1 into file "test" .... (15 Replies)
Discussion started by: Bruno
15 Replies

4. Solaris

Problem in using wildcard characters in xargs with find

Hi, Under my parent diectory I have directory named "Response" in many of its subfolders. I am interested to see all files with extention .pro in Response Directory. I am giving following command - find . -name "Response" -type d | xargs -i ls -lrt {}/*.pro but it is not giving result. ... (3 Replies)
Discussion started by: sanjay1979
3 Replies

5. Shell Programming and Scripting

xargs problem

Hi From the xargs man page (Solaris): ls $1 | xargs -I {} -t mv $1/{} $2/{} This would move all the files in directory $1 to directory $2 Problem 1: In a shell script if I want to move files in d1 to d2 dir1=~/d1 dir2=~/d2 ls $dir1 | xargs -I {} -t mv $dir1/{} $dir2/{} does not... (3 Replies)
Discussion started by: encrypted
3 Replies

6. Shell Programming and Scripting

xargs command problem

Hi I am trying to use "xargs" command to loop through each file, modify it and overwrite the old file with the modification but with the same file name. I thought it is easy but I just can't get it to work I tried the following I thought {} would give me the current file name, but it... (1 Reply)
Discussion started by: tiger66
1 Replies

7. Shell Programming and Scripting

Help with xargs

hi Could any one please tell me the option using which we can run multiple commands using xargs I have list of files, I want to run dos2unix and chmod at one shot on them I tried google n searched man pages but couldnt really find the solution , please help right now im doing this ls... (4 Replies)
Discussion started by: sunilmenhdiratt
4 Replies

8. Shell Programming and Scripting

piping problem with xargs

I'm trying to pipe the output from a command into another using xargs but is not getting what I want. Running this commands: find . -name '33_cr*.rod' | xargs -n1 -t -i cut -f5 {} | sort -k1.3n | uniq | wc -l give the following output: cut -f5 ./33_cr22.rod cut -f5 ./33_cr22.rod ... 9224236... (7 Replies)
Discussion started by: ivpz
7 Replies

9. Shell Programming and Scripting

Help with xargs

Using the bash shell I'm trying to either create a command for the command line or a script that will show netstat info for a given process name. Here is an example of what I'm trying to do:$ ps aux |grep catalina |grep -v grep | awk '{print $2}' 5132 $ netstat -nlp |grep 5132 (Not all processes... (11 Replies)
Discussion started by: axiopisty
11 Replies

10. Shell Programming and Scripting

Problem using xargs with rm

I am trying to call xargs, however rm is complaining find . -maxdepth 1 -name "*tests*" -print0 | xargs -0 rm rm: missing operand Try `rm --help' for more information. (3 Replies)
Discussion started by: kristinu
3 Replies

LEARN ABOUT OPENDARWIN

slapd-passwd

SLAPD-PASSWD(5) 						File Formats Manual						   SLAPD-PASSWD(5)

NAME

       slapd-passwd - /etc/passwd backend to slapd

SYNOPSIS

       /etc/openldap/slapd.conf

DESCRIPTION

       The  PASSWD  backend  to slapd(8) serves up the user account information listed in the system passwd(5) file.  This backend is provided for
       demonstration purposes only.  The DN of each entry is "uid=<username>,<suffix>".  Note that non-base searches scan the  the  entire  passwd
       file, and are best suited for hosts with small passwd files.

CONFIGURATION

       This slapd.conf option applies to the PASSWD backend database.  That is, it must follow a "database passwd" line and come before any subse-
       quent "backend" or "database" lines.  Other database options are described in the slapd.conf(5) manual page.

       file <filename>
	      Specifies an alternate passwd file to use.  The default is /etc/passwd.

FILES

       /etc/openldap/slapd.conf
	      default slapd configuration file

       /etc/passwd
	      user account information

SEE ALSO

       slapd.conf(5), slapd(8), passwd(5).

OpenLDAP 2.1.X							    RELEASEDATE 						   SLAPD-PASSWD(5)
All times are GMT -4. The time now is 03:31 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy