07-07-2005
Oh and stripping out returns, line breaks etc would be nice too.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
All,
I'm a newbie at shell scripting and regular expressions and I just need to take a file that's arranged like the one below, remove all leading and trailing whitespace and add a line break after each word. I've been able to remove a few spaces using various awk, sed and Perl scripts, but... (7 Replies)
Discussion started by: moose1
7 Replies
2. Shell Programming and Scripting
Hi,
I have been trying to remove whitespace from a file using sed. Here is an example of what im trying to do:
www1 = www1
www2 = www2
www3 = www3
and all the way to 300 and i want it to look like:
www1=www1
www2-www2
www3=www3
again upto 300
Any help... (12 Replies)
Discussion started by: truck7758
12 Replies
3. Shell Programming and Scripting
Hmmm... Bash doesn't parse whitespace with a read.
lev@sys09:~$ read line; echo "$line"
test
test
You can imagine what this does if you're using a shell script to read a list of unknown file names containing unknown spaces.
lev@sys09:~$ read word1 word2; echo "$word1,$word2"
123 456... (2 Replies)
Discussion started by: lev_lafayette
2 Replies
4. Shell Programming and Scripting
Hello forums!
I've been tinkering with a shell script to partition and restore content to a drive based on a type of file in a given directory. My goal is for my script to assemble several restore images, partition the drive based on the images and to then restore those images to the partitions... (1 Reply)
Discussion started by: rkasowan
1 Replies
5. UNIX for Dummies Questions & Answers
I combined 2 files using the paste command. It gave me something like this:
123445 ,AABBNN
22344 ,BBVVMM
I want to remove the whitespace between the end of string 1 and the comma (there is more blank space than my post is showing). Would I... (2 Replies)
Discussion started by: nickg
2 Replies
6. UNIX for Advanced & Expert Users
I have a single string as below:
Rat run after Cat
i.e. there is a single whitespace after Cat.
This causes my file to fail.
Is there a way I can remove any whitespace at the end of any string.
I tried sed 's/ *//g', but it removes all white space and the above string becomes... (10 Replies)
Discussion started by: RubinPat
10 Replies
7. Shell Programming and Scripting
Hi
Following is an example line.
echo "192.22.22.22 \"33dffwef\" 200 300 dsdsd" | sed "s:\(\ *\ \):\1:"
I want it's output to be
200
However this is not the case. Can you tell me how to do it? I don't want to use AWK for this. Secondly, how can i fetch just 300? Should I use "\2"... (3 Replies)
Discussion started by: shahanali
3 Replies
8. Shell Programming and Scripting
Hello I am working aon script, that tells me how many users or on the system when i run it.
The script is
#!/bin/bash
w | cut -f 1 -d ' ' |sort -u | wc -l
When ran it shows 16 users including myself and a line of white space.
I was wondering what I need to add to remove my user... (2 Replies)
Discussion started by: mosdojaf
2 Replies
9. UNIX for Dummies Questions & Answers
Hi guys,
I am working with large data sets and often times realize that not all of the columns are aligned correctly (sometimes rows will be shifted). So when I try to do something like:
awk '{ if ($2 > 30 && $5 == $3){print}}' file > output
it won't really work since some of the rows... (2 Replies)
Discussion started by: verse123
2 Replies
10. Shell Programming and Scripting
This is my file
.........hostname.............this is hostname
.........alias...................alias name
Remark use dot(.) instead of whitespace B'cuz this forum not allow to use more whitespace.
---------------------------------------
I sperate by whitespace not work.
awk 'BEGIN {FS=" "}... (4 Replies)
Discussion started by: cyberking
4 Replies
NICE(2) Linux Programmer's Manual NICE(2)
NAME
nice - change process priority
SYNOPSIS
#include <unistd.h>
int nice(int inc);
DESCRIPTION
nice adds inc to the nice value for the calling pid. (A large nice value means a low priority.) Only the superuser may specify a negative
increment, or priority increase.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
ERRORS
EPERM A non-super user attempts to do a priority increase by supplying a negative inc.
CONFORMING TO
SVr4, SVID EXT, AT&T, X/OPEN, BSD 4.3. However, the Linux and glibc (earlier than glibc 2.2.4) return value is nonstandard, see below.
SVr4 documents an additional EINVAL error code.
NOTES
Note that the routine is documented in SUSv2 to return the new nice value, while the Linux syscall and (g)libc (earlier than glibc 2.2.4)
routines return 0 on success. The new nice value can be found using getpriority(2). Note that an implementation in which nice returns the
new nice value can legitimately return -1. To reliably detect an error, set errno to 0 before the call, and check its value when nice
returns -1.
SEE ALSO
nice(1), getpriority(2), setpriority(2), fork(2), renice(8)
Linux 2001-06-04 NICE(2)