p is a variable. RS="\n". On the first line p becomes the firs line followed by a "\n". Every next line gets put at the beginning of p with a "\n" in between. At the end the variable p is printed except for the superfluous trailing "\n" that was put there on line 1.
We could also keep the newline out of the string on line 1, for example
where x has the value ""
how can i use a rlogin with out entered a password,
someone tell me about configure the next files
/.rhosts
/etc/hosts.equiv and /etc/hosts
but i not sure about that, or there are not enough
could you tell me how to do that? (3 Replies)
Hi all,
could any of you please help me on my problem..
we are doing FTP (one report out put) from one server to another server through unix shell script program.
Due to the network issues, some times FTP process is hanging.
So we planned to modify the existing program with the following... (2 Replies)
Hi All,
My requirement is if the record is starting with 0, then do some processing.
if starting with 1, some processing
else (not with 0 or 1 ) then do some other processing.
i tried the following
case "$test" in
/^0/) echo "starting with zero ;;
/^1/) echo " with one" ;;
*) echo... (2 Replies)
Hi All,
My requirement is if the record is starting with 0, then do some processing.
if starting with 1, some processing
else (not with 0 or 1 ) then do some other processing.
i tried the following
case "$test" in
/^0/) echo "starting with zero ;;
/^1/) echo " with one" ;;
*) echo... (3 Replies)
Hi all, i'm quite new in the UNIX world. So maybe i'm going to ask simple questions but they are unsolvable for me...
I'm trying to implement the 'more' function or kinda of that, for improving my knowledges. But I encountered some problems that i hope u will help me to solve.
The code i... (0 Replies)
Unix is something new for me, I trying learn about it now.
I have download the sun virtualbox software and install solaris 10 into it. It is is like wizard with step by step installation guideline. :)
NOw how can i implement mirroring(RAID) into the my new SunOS? can anyone give a briefly list... (14 Replies)
hi,
i am having three files which is having following data
file1:
field1 field2 field3
1 A B
2 C D
3 E F
file2:
4 G H
1 I J
5 K L
file3:
4 M N (3 Replies)
Hello, could anybody explain how the ps command works? I know something about the proc file system. But I'm still not sure about how it exactly works. Like ps without any option will print out the current user's processes, but it never displays my web browsers such as firefox or my LibreOffice... (3 Replies)
Discussion started by: freedombird9
3 Replies
LEARN ABOUT DEBIAN
trim
textutil::trim(3tcl) Text and string utilities, macro processing textutil::trim(3tcl)__________________________________________________________________________________________________________________________________________________NAME
textutil::trim - Procedures to trim strings
SYNOPSIS
package require Tcl 8.2
package require textutil::trim ?0.7?
::textutil::trim::trim string ?regexp?
::textutil::trim::trimleft string ?regexp?
::textutil::trim::trimright string ?regexp?
::textutil::trim::trimPrefix string prefix
::textutil::trim::trimEmptyHeading string
_________________________________________________________________DESCRIPTION
The package textutil::trim provides commands that trim strings using arbitrary regular expressions.
The complete set of procedures is described below.
::textutil::trim::trim string ?regexp?
Remove in string any leading and trailing substring according to the regular expression regexp and return the result as a new
string. This is done for all lines in the string, that is any substring between 2 newline chars, or between the beginning of the
string and a newline, or between a newline and the end of the string, or, if the string contain no newline, between the beginning
and the end of the string. The regular expression regexp defaults to "[ \t]+".
::textutil::trim::trimleft string ?regexp?
Remove in string any leading substring according to the regular expression regexp and return the result as a new string. This apply
on any line in the string, that is any substring between 2 newline chars, or between the beginning of the string and a newline, or
between a newline and the end of the string, or, if the string contain no newline, between the beginning and the end of the string.
The regular expression regexp defaults to "[ \t]+".
::textutil::trim::trimright string ?regexp?
Remove in string any trailing substring according to the regular expression regexp and return the result as a new string. This apply
on any line in the string, that is any substring between 2 newline chars, or between the beginning of the string and a newline, or
between a newline and the end of the string, or, if the string contain no newline, between the beginning and the end of the string.
The regular expression regexp defaults to "[ \t]+".
::textutil::trim::trimPrefix string prefix
Removes the prefix from the beginning of string and returns the result. The string is left unchanged if it doesn't have prefix at
its beginning.
::textutil::trim::trimEmptyHeading string
Looks for empty lines (including lines consisting of only whitespace) at the beginning of the string and removes it. The modified
string is returned as the result of the command.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category textutil
of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
SEE ALSO regexp(3tcl), split(3tcl), string(3tcl)KEYWORDS
prefix, regular expression, string, trimming
CATEGORY
Text processing
textutil 0.7 textutil::trim(3tcl)