10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hello all,
I get data from different vendors and need to clean it up. Usually it pretty straight forward when i have files that only have headers....but in my case i have files that have a starting line of file name(and some junk info) and 2nd line is headers and the 3rd line is were the actual... (11 Replies)
Discussion started by: crazy_max
11 Replies
2. Shell Programming and Scripting
Hi - I have req to join broken lines and remove empty lines but should NOT be in one line. It has to be as is line by line. The challenge here is there is no end of line/start of line char.
thanks in advance
Source:-
2003-04-34024|04-10-2003|Claims|Claim|01-13-2003|Air Bag:Driver;... (7 Replies)
Discussion started by: Jackceasar123
7 Replies
3. Shell Programming and Scripting
Hi all,
I'm excited to the part of unix.com forum, and noob to it.
I have an query, where I have an file and it contains data like this
use
thread
when
posting
do
no
I was expecting the result as
use thread
thread when
when posting
posting do
do no
use thread when
thread when... (6 Replies)
Discussion started by: Jose Nirmal
6 Replies
4. Shell Programming and Scripting
I'm looking for a way to join lines in a file; e.,g consider the following
R|This is line 1
R|This is
line 2
R|This is line 3
R|This is line 4
R|This is
line 5
what i want to end up with is
R|This is line 1
R|This is line 2
R|This is line 3
R|This is line 4
R|This is line 5
so... (15 Replies)
Discussion started by: Storms
15 Replies
5. Shell Programming and Scripting
Hello
I'd like to remove any line in an output file that is preceded by one or more warning messages (each warning is on a separate line).
Example :
WARNING: Estimation of lower confidence limit of \rho failed; setting it to 0.
822 28447 ... (4 Replies)
Discussion started by: jossojjos
4 Replies
6. Shell Programming and Scripting
delete last X lines,which start with +
example file:
test1
test2
remove1
remove2
one liner shell is preferred. (8 Replies)
Discussion started by: honglus
8 Replies
7. Shell Programming and Scripting
Hi Guys,
Was trying to attempt the below using awk and sed, have no luck so far, so any help would be appreciated.
Current Text File: The first line has got an "\n", and the second line has got spaces/tabs then the word and "\n"
TIME SERVER/CLIENT TEXT... (6 Replies)
Discussion started by: eo29
6 Replies
8. Shell Programming and Scripting
Hi All,
I need the command to join 2 lines into one. I found lots of threads but none give me the sollution. Probably because unix scripting is one of my best features ;)
I got a logfile where line 2 needs to be joined with line 1, lines 4 needs to be joined with line 3 etc
If you need... (16 Replies)
Discussion started by: rene21976
16 Replies
9. Shell Programming and Scripting
Hi ,
I want to join two lines in a file, where the second line contain query string. if it doesn't contain that string i don't want to join
e.g.
Input file is as following:
name fame game
none none none
name fame game
cat eat mice
I need output file as
name fame game
none none... (2 Replies)
Discussion started by: ashrafonics
2 Replies
10. Shell Programming and Scripting
i have a script that joins 2 lines of a file into one line and again next 2 line into one line.
if number of line is 4 then after joining it should be 2 lines in a file
my file a1.txt has some of the below lines
1-GH32X, CC, AMR,
Number of Intervals Not Inserted: 1 / 95
1-150KP1, CC,... (3 Replies)
Discussion started by: ali560045
3 Replies
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)