Sponsored Content
Top Forums Shell Programming and Scripting Sorting strings in reverse order Post 302723977 by gimley on Wednesday 31st of October 2012 07:58:29 AM
Old 10-31-2012
Many thanks. Am out and don't have a perl compiler to check the code, but will definitely get back to you with the results.
Thanks for all your help

---------- Post updated at 06:58 AM ---------- Previous update was at 04:14 AM ----------

Many thanks to both. The two solutions worked beautifully. The one proposed by elixir_sinari is faster and as he himself states
With perl (without invoking the interpreter twice and without calling any external utility):
Thanks for the quick postings and the useful code. I learned finally how to handle scalar reverse, which is a great learning experience for me.
This User Gave Thanks to gimley For This Post:
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

using sed and regex to reverse order???

so i have been trying to learn how to manipulate text on my own and have gotten stumped... let's say i have a text file that says (highly simplified): people ordinary How would swap the order of the words.. I know i need to use sed and some kind of back reference but cannot make it... (2 Replies)
Discussion started by: urtherhoda
2 Replies

2. Shell Programming and Scripting

sort a file in reverse order

I a file with log entries... I want to sort it so that the last line in the file is first and the first line is last.. eg. Sample file 1 h a f 8 6 After sort should look like 6 8 f a h 1 (11 Replies)
Discussion started by: frustrated1
11 Replies

3. Shell Programming and Scripting

shell program for sorting strings in an alphabetical order

Hi, I trying to find the solution for writing the programming in unix by shell programming for sorting thr string in alphabetical order. I getting diffculty in that ,, so i want to find out the solution for that Please do needful Thanks Bhagyesh (1 Reply)
Discussion started by: bp_vanarse
1 Replies

4. UNIX for Dummies Questions & Answers

sort -reverse order

I need to sort the particular column only in reverse order how i can give it.. if i give the -r option the whole file is getting sorted in reverse order. 1st 2nd col 3rd C col 4th col 5th col ------------------------------------------- C... (7 Replies)
Discussion started by: sivakumar.rj
7 Replies

5. Shell Programming and Scripting

cut a field, but with reverse order

Hi Everyone, I have one a.txt: a b 001 c b b 002 c c c, not 002 c The output should be 001 002 002 If i use cut -f 3 -d' ', this does not work on the 3rd line, so i thought is any way to cut the field counting from the end? or any perl thing can do this?:confused: ... (3 Replies)
Discussion started by: jimmy_y
3 Replies

6. Programming

Sorting a vector of strings into numerical order.

I have a vector of strings that contain a list of channels like this: 101,99,22HD,432,300HD I have tried using the sort routine like this: sort(mychans.begin(),mychans.end()); For some reason my channels are not being sorted at all. I was hoping someone might have some input that might... (2 Replies)
Discussion started by: sepoto
2 Replies

7. Shell Programming and Scripting

How to get fields in reverse order?

i am having lines like below seperated by "|" (pipe) abc|xyz 123|567 i have to get the above in reverse order xyz|abc 567|123 Pls help (5 Replies)
Discussion started by: suryanarayana
5 Replies

8. Shell Programming and Scripting

print in reverse order

Hi, I want to print the item in reverse order such that the output would look like 00 50 50 23 40 22 02 96 Below is the input: 00 05 05 32 04 22 20 69 Video tutorial on how to use code tags in The UNIX and Linux Forums. (5 Replies)
Discussion started by: reignangel2003
5 Replies

9. UNIX for Beginners Questions & Answers

Issues with sorting in reverse order

I have a unix script that outputs a summary file to the mac desktop. The file is called summary.txt I am trying to configure such so that the summary.txt file lists the content contained within such in reverse sort order. I have used sort -r but it does not seem to work. I would be... (8 Replies)
Discussion started by: Braveheart
8 Replies
JED(1)								   User Manuals 							    JED(1)

NAME
Jed - programmers editor SYNOPSIS
jed --version jed-script --version xjed --version jed [--secure] [--batch|--script|--help] [options] file ... jed-script [--secure] script file [script options] ... xjed [--secure] [X options] [--batch|--script|--help] [options] file ... DESCRIPTION
Jed - programmers editor Features: Color syntax highlighting. Emulation of Emacs, EDT, Wordstar, and Brief editors. Extensible in a language resembling C. Completely cus- tomizable. Editing TeX files with AUC-TeX style editing (BiBTeX support too). Folding support, and much more... For complete documentation, see GNU info files, this manual only provides brief tutorial. OPTIONS
major options --version prints the version and compiletime variables. --help prints usage information. --secure runs Jed in secure mode, e.g. you can't run any external commands with system() or run_shell_cmd(). --batch run Jed in batch mode. This is a non-interactive mode. --script this is a mode like --batch but jed does not eval the startup files. It behaves like slsh. You must give the file that should be evaluated as second argument. It's the same as calling jed-script. minor options -n do not load .jedrc file. -a 'file' load file as user configuration file instead of .jedrc. + 'n' goto line n in buffer (notice that in order to this option to take effect, if must appear before the file name in the command line, like 'jed +3 file') -g 'n' goto line n in buffer (notice that in order to this option to take effect, if must appear after the file name in the command line, like 'jed file -g 3') -l 'file' load file as S-Lang code. -f 'function' execute S-Lang function named function -s 'string' search forward for string -2 split window -i 'file' insert file into current buffer. X options xjed accapts the common options like -display, -name, -fn and -geometry. Additionaly it accepts -facesize SIZE, -fs SIZE if build with XRENDERFONT support, selects the font size SIZE. Use it with the option -fn to select a scalable font. -foreground COLOR, -fg COLOR sets the foreground color. -background COLOR, -bg COLOR sets the background color. -fgMouse COLOR, -mfg COLOR sets the foreground color of the mouse pointer. -bgMouse COLOR, -mbg COLOR sets the background color of the mouse pointer. -Iconic, -ic start iconified. -title NAME sets the window title to NAME. For more options look at xterm.c. CONFIGURATION
Emulating Other Editors JED's ability to create new functions using the S-Lang programming language as well as allowing the user to choose key bindings, makes the emulation of other editors possible. Currently, JED provides reasonable emulation of the Emacs, EDT, and Wordstar editors. Emacs Emulation Emacs Emulation is provided by the S-Lang code in emacs.sl. The basic functionality of Emacs is emulated; most Emacs users should have no problem with JED. To enable Emacs emulation in JED, make sure that the line: () = evalfile ("emacs"); is in your jed.rc (.jedrc) startup file. JED is distributed with this line already present in the default jed.rc file. EDT Emulation For EDT emulation, edt.sl must be loaded. This is accomplished by ensuring that the line: () = evalfile ("edt"); is in present in the jed.rc (.jedrc) Startup File. Wordstar Emulation wordstar.sl contains the S-Lang code for JED's Wordstar emulation. Adding the line () = evalfile ("wordstar"); to your jed.rc (.jedrc) startup file will enable JED's Wordstar emulation. RUN TIME
Status line and Windows JED supports multiple windows. Each window may contain the same buffer or different buffers. A status line is displayed immediately below each window. The status line contains information such as the JED version number, the buffer name, mode, etc. Please beware of the fol- lowing indicators: ** buffer has been modified since last save. %% buffer is read only. m Mark set indicator. This means a region is being defined. d File changed on disk indicator. This indicates that the file associated with the buffer is newer than the buffer itself. s spot pushed indicator. + Undo is enabled for the buffer. [Narrow] Buffer is narrowed to a region of LINES. [Macro] A macro is being defined. Mini-Buffer. The Mini-Buffer consists of a single line located at the bottom of the screen. Much of the dialog between the user and JED takes place in this buffer. For example, when you search for a string, JED will prompt you for the string in the Mini-Buffer. The Mini-Buffer also provides a direct link to the S-Lang interpreter. To access the interpreter, press Ctrl-X Esc and the S-Lang> prompt will appear in the Mini-Buffer. Enter any valid S-Lang expression for evaluation by the interpreter. It is possible to recall data previously entered into the Mini-Buffer by using the up and down arrow keys. This makes it possible to use and edit previous expressions in a convenient and efficient manner. Basic Editing Editing with JED is pretty easy - most keys simply insert themselves. Movement around the buffer is usually done using the arrow keys or page up and page down keys. If edt.sl is loaded, the keypads on VTxxx terminals function as well. Here, only the highlights are touched upon (cut/paste operations are not considered `highlights'). In the following, any character prefixed by the ^ character denotes a Control character. On keyboards without an explicit Escape key, Ctrl-[ will most likely generate and Escape character. A prefix argument to a command may be generated by first hitting the Esc key, then entering the number followed by pressing the desired key. Normally, the prefix argument is used simply for repetition. For example, to move to the right 40 characters, one would press Esc 4 0 followed immediately by the right arrow key. This illustrates the use of the repeat argument for repetition. However, the prefix argu- ment may be used in other ways as well. For example, to begin defining a region, one would press the Ctrl-@ key. This sets the mark and begins highlighting. Pressing the Ctrl-@ key with a prefix argument will abort the act of defining the region and to pop the mark. The following list of useful keybindings assumes that emacs.sl has been loaded. Ctrl-L Redraw screen. Ctrl-_ Undo (Control-underscore, also Ctrl-X u'). Esc q Reformat paragraph (wrap mode). Used with a prefix argument. will justify the paragraph as well. Esc n narrow paragraph (wrap mode). Used with a prefix argument will justify the paragraph as well. Esc ; Make Language comment (Fortran and C) Esc Trim whitespace around point Esc ! Execute shell command Esc $ Ispell word Ctrl-X ? Show line/column information. ` quoted_insert --- insert next char as is (backquote key) Esc s Center line. Esc u Upcase word. Esc d Downcase word. Esc c Capitalize word. Esc x Get M-x minibuffer prompt with command completion Ctrl-X Ctrl-B pop up a list of buffers Ctrl-X Ctrl-C exit JED Ctrl-X 0 Delete Current Window Ctrl-X 1 One Window. Ctrl-X 2 Split Window. Ctrl-X o Other window. Ctrl-X b switch to buffer Ctrl-X k kill buffer Ctrl-X s save some buffers Ctrl-X Esc Get "S-Lang>" prompt for interface to the S-Lang interpreter. Esc . Find tag Ctrl-@ Set Mark (Begin defining a region). Used with a prefix argument aborts the act of defining the region and pops the Mark. FILES
JED_ROOT/lib/*.sl these are the default runtime jed slang files (packages like jed-extra can define additional slang library directories) JED_ROOT/lib/site.sl This is the default startup file. /etc/jed.d/*.sl The system wide configuration files (this is a special Debian feature). ~/.jedrc Per user configuration file, or ~/.jed/jed.rc per user configuration file if the Jed_Home_Directory ~/.jed/ exists. AUTHOR
John E. Davis <davis@space.mit.edu> Jed's Author --- This document was translated to nroff by "Boris D. Beletsky" <borik@isracom.co.il> Debian OCT 1996 JED(1)
All times are GMT -4. The time now is 09:29 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy