For what its worth, check out the readline library. It is somewhat more work than getc/putc, but in many many cases its very much worth the effort: you get command line editing, command line history, key bindings, etc etc, and the API is not that difficult to use:
Code:
char line[MAX_LINE_LEN];
line = readline ("prompt > ");
/* If the line has any text in it, save it on the history. */
if (line && *line)
add_history (line);
I want to write a script in KSH that takes the output of one command and redisplays it. Something like:
while true
do
read inpt
date +"%I:%M:%S %p <-> $inpt"
done
and then some how get the output of the ping command to redirect to the input of this script.
does that make sense? (2 Replies)
I have two files.
Fileone contains
text string one
text string two
text string three
Filetwo contains
Name:
Address:
Summary:
Name:
Address:
Summary:
Name:
Address:
Summary:
I would like to use sed to read each line of file one and put it at the end of the summary line of file... (3 Replies)
Hi all .... vexing problem here ...
I am using sed to replace some special characters in a .txt file:
sed -e 's/_<ED>_/_355_/g;s/_<F3>_/_363_/g;s/_<E1>_/_341_/g' filename.txt
This command replaces <ED> with í , <F3> with ó and <E1> with á.
When I run the command to standard output, it works... (1 Reply)
Hi
I would like to ask about my plan script
I have this several workstation want to monitor and execute a command without logging it we use "rsh $host "<command>" i create csh script using foreach to loop my several workstation, my problem with the rsh command is if it encounter a... (3 Replies)
I want to run
wget "URL" -SO /dev/null 2>&1 | grep "HTTP/\\|Age:\\|Last-Modified:"
but I want a alias so I can just type mywget and the URL and it will put the url in the right place and give me the output that I want without having to type that over and over again.:wall:
I am newbie to all... (2 Replies)
Hi, This is what I have so far but it seems like a lot more than is necessary because....for example...user presses 2 or 3 ..... the script does the *same* thing it just depends on the directory it has to access....how can I improve this so that the code from 2 and 3 is only put once...?
... (4 Replies)
Hi,
I am writing a little script to update a parameters on JMQ. however the JMQ requires a "y" confirmation to be input as part of the cmd I am running. However I want run this script to offline with no input from a user.
it works if a I create a file with with just y in it and pass that in... (3 Replies)
Hi,
I've got a text file with hundreds of lines I need to upload to an API via curl, one by one.
The text file is like:
2012-08-01 10:45,124
2012-08-02 10:45,132
2012-08-03 10:45,114
I want to get curl to go through the text file sending a post for each line.
like:
curl --request... (0 Replies)
Hi there, I need to read some data from a file with string and number that is similar to this:
word1 0.0 1.0 0.0
word3 word4 0.0 0.0 -1.0
word1 0.0 0.0 1.0
word5With this code:
#include<iostream>
#include<fstream>
#include<string>
using namespace std;
int main()
... (5 Replies)
LEX(1) General Commands Manual LEX(1)NAME
lex - generator of lexical analysis programs
SYNOPSIS
lex [ -tvfn ] [ file ] ...
DESCRIPTION
Lex generates programs to be used in simple lexical analyis of text. The input files (standard input default) contain regular expressions
to be searched for, and actions written in C to be executed when expressions are found.
A C source program, `lex.yy.c' is generated, to be compiled thus:
cc lex.yy.c -ll
This program, when run, copies unrecognized portions of the input to the output, and executes the associated C action for each regular
expression that is recognized.
The following lex program converts upper case to lower, removes blanks at the end of lines, and replaces multiple blanks by single blanks.
%%
[A-Z] putchar(yytext[0]+'a'-'A');
[ ]+$
[ ]+ putchar(' ');
The options have the following meanings.
-t Place the result on the standard output instead of in file `lex.yy.c'.
-v Print a one-line summary of statistics of the generated analyzer.
-n Opposite of -v; -n is default.
-f `Faster' compilation: don't bother to pack the resulting tables; limited to small programs.
SEE ALSO yacc(1)
M. E. Lesk and E. Schmidt, LEX - Lexical Analyzer Generator
LEX(1)
02-19-2010
