Sponsored Content
Full Discussion: Xargs and
Top Forums Shell Programming and Scripting Xargs and Post 302402092 by fubaya on Tuesday 9th of March 2010 12:22:10 AM
Old 03-09-2010
xargs can take input from both a file and arguments at the same time, the downside is that it always puts arguments first, even if you take the "$*" and put it on the end.
Code:
xargs -d"\n" command $* < file

This will work for:
command any arguments "1 a" "2 b" "3 c"
but not:
command "1 a" "2 b" "3 c" arguments.

To put arguments on the end, it looks like this is the only option.
Code:
echo $* | cat file - | xargs -d"\n" command

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Help with xargs

Hi there, I am trying to move around 3000 files from one directory to another. The mv command is complaining from too many arguments. I tried to use the xargs command but with no luck. Could some body provide help? Regards (4 Replies)
Discussion started by: JimJim
4 Replies

2. Shell Programming and Scripting

why we use xargs..

hi , can anyone help me by saying why we use xargs.. is it acing like a place holder..? thanks, Krips. (3 Replies)
Discussion started by: kripssmart
3 Replies

3. UNIX for Advanced & Expert Users

xargs -P

I discovered that GNU's xargs has a -P option to allow its processes to run in parallel. Great! Is this a GNU thing, or is it supported by other platforms as well? (4 Replies)
Discussion started by: otheus
4 Replies

4. Shell Programming and Scripting

Using xargs

hi i just want to know that how do we use xargs command to find files which are greater than specified memory in a given directory (6 Replies)
Discussion started by: sumit the cool
6 Replies

5. Shell Programming and Scripting

Help in using xargs

Hi, I have a requirement to RCP the files from remote server to local server. Also the RCP has to run in parallel. However using 'xargs' retrives 2 file names during each loop. How do we restrict to only one file name using xargs and loop till remaining files. I use the below code for... (2 Replies)
Discussion started by: senthil3d
2 Replies

6. 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

7. Shell Programming and Scripting

xargs

Dear all , any suggest on xargs to combine from (1.txt and 2.txt) to output.txt ? thanks a lot. 1.txt 0123 BUM-5M BUM-5M 93490481 63839 0124 BUM-5M BUM-5M 112112 ... (3 Replies)
Discussion started by: samoptimus
3 Replies

8. 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

9. Shell Programming and Scripting

Xargs

Hello, I need some help with xargs $ ls aaa bbb ccc ddd$ ls | xargs -I{} ls -la {} -rw-rw-r--. 1 xxx xx 0 May 30 20:04 aaa -rw-rw-r--. 1 xxx xx 0 May 30 20:04 bbb -rw-rw-r--. 1 xxx xx 0 May 30 20:04 ccc -rw-rw-r--. 1 xxx xx 0 May 30 20:04 dddit's possible to have output like this with... (3 Replies)
Discussion started by: vikus
3 Replies

10. UNIX for Dummies Questions & Answers

Xargs

Hi, can anyone tell me in detail ? what the following do in detail ? I am trying to get a largest number in a list Thanks Tao LARGEST=$(echo $* | xargs -n1 | sort -nr | tail -1) (3 Replies)
Discussion started by: ccp
3 Replies
apply(1)						      General Commands Manual							  apply(1)

NAME
apply - Applies a command to a set of arguments SYNOPSIS
apply [-acharacter] [-number] command argument... The apply command runs the specified command on each argument in turn. OPTIONS
Identifies the character used instead of the % (percent sign) to designate argument substitution strings. Specifies the number of argu- ments to be passed to command. DESCRIPTION
Normally, arguments are chosen individually; the optional number specifies the number of arguments to be passed to command. If number is 0 (zero), command is run without arguments once for each argument. If you include character sequences of the form %n (where n is a digit from 1 to 9) in command, they are replaced by the nth unused argument following command when command is executed. If any such sequences occur, number is ignored, and the number of arguments passed to command is the maximum value of n in command. You can specify a character other than % (percent sign) to designate argument substitution character strings with the -a option; for exam- ple, -a@ would indicate that the sequences @1 and @2 were to be replaced by the first and second unused arguments following command. NOTES
Shell metacharacters in command may have undesirable effects; it is best to enclose complicated commands in ' ' (single quotes). There is no way to pass a % (percent sign) followed immediately by any number if % is the argument expansion character. EXAMPLES
The following command is similar to ls: apply echo * The following command compares the file a1 to the file b1, a2 to b2, and so on: apply -2 cmp a1 b1 a2 b2 ... The following command runs who 5 times: apply -0 who 1 2 3 4 5 The following command links all files in the current directory to the directory /usr/joe: apply 'ln %1 /usr/joe' * SEE ALSO
Commands: sh(1), xargs(1) apply(1)
All times are GMT -4. The time now is 09:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy