Hi,
I want to write a generic shell script, which can concatenate n number of files passed as parameter ;to an output file which is again a parameter
Example
catfl.sh outfl.txt a.txt b.txt c.txt (3 files to be concatenated into a file outfl.txt)
catfl.sh outfl.txt a.txt b.txt(2 files to be... (3 Replies)
How can I do this:
date = 4 -----------> 04
Month= 3-----------> 03
I wish to make a varibale named Var1 which will hold the value of current date and month value as:
2 digits for date.
2 digits for month.
So finally var1 should hold value as 0403 --- MMDD (11 Replies)
I have a somewhat bizarre problem when trying to concatenate lines in a file.
Using cat file.txt | sed -e :a -e '/$/N;s/\n/ /;ta' the output in file.txt should go from
1
2
3to 1 2 3 instead I only get the last line or 3.
I find that if I open the file in gedit and hit delete in front of every... (7 Replies)
Hi there,
I'm writing a basic script where I want to make a string of 2 numeric fields from a file, which I have done, but the behavior is rather confusing.
I have a file of random values such as:
1 2
3 4
5 6
7 8
9 10
and my awk code is:
BEGIN { FS = " " }
{ str = str $1 $2 }
END {... (7 Replies)
I have more than one files in a directory , namely
GLOW_OUT.txt
FIELD_OUT.txt
BASE_OUT.txt
...
SHOW_OUT.txt
What I wanted to do is to
I am working in Korn Shell
What I did was :
for file in <directory_name>/*.* ;do
cat $file | grep -v '^$' >> temp_file
rm $file
done
... (7 Replies)
Hi Team!!
Please can anyone tell me why the following line does not work properly?
str3+=$str2
it seems that str3 variable does not keep its value in order to be concatenated in the next iteration! Thus when i print the result of the line above it returns the str2 value
What i want to do is to... (8 Replies)
I have some files named as:
error_abc.txt
error_def.txt
error_ghi.txt
I want to concatenate all these into a single file say error_all.txt. The error_all.txt should be displayed like:
... (11 Replies)
awk '{$2=$2":"$8"-"$3;$3=$NF;$4=$NF="";print $0 | $10=$10":"$8"-"$18;$11=$NF;$12=$NF="";print $0 }' design.txt
Trying to concatenate specific fields in a spreadsheet and the others remain unchanged.
I attached an excel spreadsheet (all the data comes from a design.txt), but I put an example... (3 Replies)
Hi,
I have a file containing many records delimited by pipe (|).
Each record should contain 17 columnns/fields. there are some fields having fields less than 17.So i am extracting those records to a file using the below command
awk 'BEGIN {FS="|"} NF !=17 {print}' feedfile.txt... (8 Replies)
Hi,
I have the following reports that get generated every 1 hour and this is my requirement:
1. 5 reports get generated every hour with the names "Report.Dddmmyy.Thhmiss.CTLR"
"Report.Dddmmyy.Thhmiss.ACCD"
"Report.Dddmmyy.Thhmiss.BCCD"
"Report.Dddmmyy.Thhmiss.CCCD"... (1 Reply)
Discussion started by: Jesshelle David
1 Replies
LEARN ABOUT REDHAT
xargs
XARGS(1L)XARGS(1L)NAME
xargs - build and execute command lines from standard input
SYNOPSIS
xargs [-0prtx] [-e[eof-str]] [-i[replace-str]] [-l[max-lines]] [-n max-args] [-s max-chars] [-P max-procs] [--null] [--eof[=eof-str]]
[--replace[=replace-str]] [--max-lines[=max-lines]] [--interactive] [--max-chars=max-chars] [--verbose] [--exit] [--max-procs=max-procs]
[--max-args=max-args] [--no-run-if-empty] [--version] [--help] [command [initial-arguments]]
DESCRIPTION
This manual page documents the GNU version of xargs. xargs reads arguments from the standard input, delimited by blanks (which can be pro-
tected with double or single quotes or a backslash) or newlines, and executes the command (default is /bin/echo) one or more times with any
initial-arguments followed by arguments read from standard input. Blank lines on the standard input are ignored.
xargs exits with the following status:
0 if it succeeds
123 if any invocation of the command exited with status 1-125
124 if the command exited with status 255
125 if the command is killed by a signal
126 if the command cannot be run
127 if the command is not found
1 if some other error occurred.
OPTIONS
--null, -0
Input filenames are terminated by a null character instead of by whitespace, and the quotes and backslash are not special (every
character is taken literally). Disables the end of file string, which is treated like any other argument. Useful when arguments
might contain white space, quote marks, or backslashes. The GNU find -print0 option produces input suitable for this mode.
--eof[=eof-str], -e[eof-str]
Set the end of file string to eof-str. If the end of file string occurs as a line of input, the rest of the input is ignored. If
eof-str is omitted, there is no end of file string. If this option is not given, the end of file string defaults to "_".
--help Print a summary of the options to xargs and exit.
--replace[=replace-str], -i[replace-str]
Replace occurences of replace-str in the initial arguments with names read from standard input. Also, unquoted blanks do not termi-
nate arguments. If replace-str is omitted, it defaults to "{}" (like for `find -exec'). Implies -x and -l 1.
--max-lines[=max-lines], -l[max-lines]
Use at most max-lines nonblank input lines per command line; max-lines defaults to 1 if omitted. Trailing blanks cause an input
line to be logically continued on the next input line. Implies -x.
--max-args=max-args, -n max-args
Use at most max-args arguments per command line. Fewer than max-args arguments will be used if the size (see the -s option) is
exceeded, unless the -x option is given, in which case xargs will exit.
--interactive, -p
Prompt the user about whether to run each command line and read a line from the terminal. Only run the command line if the response
starts with `y' or `Y'. Implies -t.
--no-run-if-empty, -r
If the standard input does not contain any nonblanks, do not run the command. Normally, the command is run once even if there is no
input.
--max-chars=max-chars, -s max-chars
Use at most max-chars characters per command line, including the command and initial arguments and the terminating nulls at the ends
of the argument strings. The default is as large as possible, up to 20k characters.
--verbose, -t
Print the command line on the standard error output before executing it.
--version
Print the version number of xargs and exit.
--exit, -x
Exit if the size (see the -s option) is exceeded.
--max-procs=max-procs, -P max-procs
Run up to max-procs processes at a time; the default is 1. If max-procs is 0, xargs will run as many processes as possible at a
time. Use the -n option with -P; otherwise chances are that only one exec will be done.
SEE ALSO find(1L), locate(1L), locatedb(5L), updatedb(1) Finding Files (on-line in Info, or printed)
XARGS(1L)