I think Shell did a nice job explaining stuff, but since I went to all the trouble of writing this post... before he beat me to it ... I will post anyway
1 - The first one makes no sense, cause it has no context... it looks to me like it was part of an if statement or something like that, in which case it was probably more like this:
Code:
if m/\(.\).*/ != '/'
in which case it still makes no sense, cause you are asking whether "(oneCharacter)anyNumberOfCharacters" = "/"
Which quite obviously it never would
2 - Sed is short for "String Editor", and allows you to manipulate strings, so the 's+++' that you see is really just the same as 's~~~' or 's///' and means:
"Search for the thing in between the first two delimiters (+ for you) and replace it with what is between the second two delimiters... but only do it the first time you find it, and never again"
next regEx knowledge for you is that ^ represents the absolute beginning of a string and $ the absolute end... also, since sed is technically running everything in between the ticks (') as a script, you can make multiple search/replace calls to the same info, and they are run sequentially, each applying changes to the string that was passed to them...
SO... the second one is looking for a period followed by a forward slash, and removing it (replacing with nothing)... then it passes that new string into the second half which searches for a forward slash followed by any number of single characters (absolutely anything basically) and removes the stuff...
so basically a use for the second one would be to get a list of directory names from a list... the only problem is that you never give any input to sed, so it will never really do anything... so try going to a shell and doing this:
Code:
ls -R | sed 's+^\./++;s+/.*++'
Not that this does anything useful, but you can see what it does compared to the ls -R command without the pipe to sed...
3 - Again, this is just a search/replace, this time replacing with a space... but the difference is that this is looking for a shell variable named 'f', and it is going to put the content of 'f' in that search... so if 'f' is 'Fred' then we are going to search for 'Fred' and replace it with ' '
Hi all,
I have a shell variable $test1 that holds a value derived from some other processing. What I need to do is use that $test1 as the input to a awk regular expression:
nawk -F"," -v tester=$test1 '
/tester/{
print $0
}
' $inputFile
So what I have is tester... (6 Replies)
I have regular expression like this ( replace + with \+)
($mod_server) = ($server =~ /\+/\\+/g);
the above is failing with error . what's wrong with it .
Thanks (1 Reply)
HI
system.sysUpTime.0 : Timeticks: (1519411311) 175 days, 20:35:13.11
From the above output i need only 175days in a perl script..
Please Help (2 Replies)
Hello together,
Yesterday I have recieved the script in the forum which works well.
This script should insert in the previous line, the line that starts with ";".
I'd like this process to recur after any arbitrary sign unless there's a number as a sign at the beginning of a line.
Actual... (14 Replies)
Hello,
I have thousand of messages (HL7), I want to use awk to extract only the ones that have a particular value in pv1.18
Each record in the file is the whole HL7 message, ie. when I print $0 I get the whole message MSH EVN PID etc. ,there is an x0d between the segments.
I would like to use a... (3 Replies)
Please let me understand this reg expression
(\s+')(.*)('\s+)(.)(.*)(\/.*)/)
i have doubt in the below 2.I'm not understanding why back-tick used?
(\s+') and ('\s+) (2 Replies)
./GEN_SCR.pl -f ${REP_PATH}/FUNCTIONAL/wide1c_1.0V/max/qor.rpt -o ${REP_PATH}/FUNCTIONAL/GEN2_wide1c_1.0V_max.csv
where GEN_SCR.pl is as below...i need to check whether max or min is coming in the argument to the script ...how to do this?
${REP_PATH}/FUNCTIONAL/wide1c_1.0V/max/qor.rpt ... (0 Replies)
how to uniquely match each of the words seperated by / in perl
${REP_PATH}/FUNCTIONAL/wide1c_1.0V/max/qor.rpt
https://www.unix.com/images/misc/progress.gif (5 Replies)
I want to make a REG Expression to validate the directory.
my dirsample is below:
/abc/abc/abc
abc/abc/abc
abc/abc/abc/
/abc/a bc/abc
/a bc/abc/abc
/abc/abc/a bc
/ abc/abc/abc
/abc/ abc/abc
/abc/.abc
/.abc/abc
/
//
/abc
/.abc
And my code is below:
grep -E '^\/(+\/?)+$' dirsample (4 Replies)
Need your help in creating regular expression for particular set. let say I have given two dates 20130623 to 20140625.
I need to create regular for the dates which fall in between above two dates. (4 Replies)
Discussion started by: gvkumar25
4 Replies
LEARN ABOUT HPUX
xmscrollvisible
XmScrollVisible(library call) XmScrollVisible(library call)
NAME
XmScrollVisible -- A ScrolledWindow function that makes an invisible
descendant of a ScrolledWindow work area visible
SYNOPSIS
#include <Xm/ScrolledW.h>
void XmScrollVisible(
Widget scrollw_widget,
Widget widget,
Dimension left_right_margin,
Dimension top_bottom_margin);
DESCRIPTION
XmScrollVisible makes an obscured or partially obscured widget or gadget descendant of a ScrolledWindow work area visible. The function re-
positions the work area and sets the specified margins between the widget and the nearest viewport boundary. The widget's location relative
to the viewport determines whether one or both of the margins must be adjusted. This function requires that the XmNscrollingPolicy of the
ScrolledWindow widget be set to XmAUTOMATIC.
scrollw_widget
Specifies the ID of the ScrolledWindow widget whose work area window contains an obscured descendant.
widget Specifies the ID of the widget to be made visible.
left_right_margin
Specifies the margin to establish between the left or right edge of the widget and the associated edge of the viewport. This
margin is established only if the widget must be moved horizontally to make it visible.
top_bottom_margin
Specifies the margin to establish between the top or bottom edge of the widget and the associated edge of the viewport. This
margin is established only if the widget must be moved vertically to make it visible.
For a complete definition of ScrolledWindow and its associated resources, see XmScrolledWindow(3)RELATED XmScrolledWindow(3).
XmScrollVisible(library call)
07-16-2007
... I will post anyway