More details: Unicode, Framebuffer. I tried to press Esc and then what should follow, letters or brackets, but seems not to work. Probably i do something wrong. If somebody is familiar with escape sequences in the console, how do you do that?
Thanks in advance. (4 Replies)
Hi,
I need to provide more than one character to "> /dev/tty" through terminal/keyboard input, I have this:
ok=false
while
do
echo " Enter r1 to reformat "
> /dev/tty
read choice
case $choice in
)
echo " bla bla bla "
;;
done
However, in this way,... (3 Replies)
I have a script.
#! /bin/bash
echo "Enter a word: "
read word
echo $word
That outputs like this..
Enter a word:
hello
hello
But how can i read on the same line the question is printed?
Like this..
Enter a word: hello
hello (2 Replies)
Hi
I am new to writing script and want to use a Bash Piped while-read and read from user input.
if something happens on server.log then do while loop or if something happend on user input then do while loop.
Pseudocode something like:
tail -n 3 -f server.log | while read serverline || read... (8 Replies)
My script needs to get some input from the user and go as a background process and run.
I have something like
read input.
do
while ...
if
..
fi
done
can i use nohup inside the script?? (7 Replies)
I'm a beginner to the Linux programming and trying my hands on some device driver examples while practising. The below code (a trimmed down version of tiny_tty.c from ldd3 book) loads perfectly using insmod and I'm able to see it in /proc/tty/drivers , /proc/modules and device nodes are getting... (1 Reply)
Dear Friends,
I am looking for a shell script to merge input files into one file .. here is my idea:
1st paramter would be outfile file (all input files content)
read all input files and merge them to input param 1
ex: if I pass 6 file names to the script then 1st file name as output file... (4 Replies)
Hi,
I'm using read in a script to prompt and receive input.
read -r -p "Do you also want to deploy folder? " response
This works fine, however, if I remotely execute the same script via ssh, at this point in the code, I don't see the message at all, but it waits for input. I could echo... (1 Reply)
Hi,
I am working on a script, which requests users to enter input.
Ex: read -p "Please enter your email id:" email
I don't want users skipping this entry, this has to be mandatory.I dont want to proceed without input.
I can do a check if variable $email is empty and proceed if not.But, i... (7 Replies)
In bash, you can do something like this:
#!/bin/bash
echo -n "What is your name? " > /dev/tty
read thename < /dev/tty
How can I do the same in python?
I have a python script that has the following content:
#!/usr/bin/python2.7
import getpass
import sys
import telnetlib
import... (2 Replies)
Discussion started by: SkySmart
2 Replies
LEARN ABOUT CENTOS
which
WHICH(1) General Commands Manual WHICH(1)NAME
which - shows the full path of (shell) commands.
SYNOPSIS
which [options] [--] programname [...]
DESCRIPTION
Which takes one or more arguments. For each of its arguments it prints to stdout the full path of the executables that would have been exe-
cuted when this argument had been entered at the shell prompt. It does this by searching for an executable or script in the directories
listed in the environment variable PATH using the same algorithm as bash(1).
This man page is generated from the file which.texinfo.
OPTIONS --all, -a
Print all matching executables in PATH, not just the first.
--read-alias, -i
Read aliases from stdin, reporting matching ones on stdout. This is useful in combination with using an alias for which itself. For
example
alias which='alias | which -i'.
--skip-alias
Ignore option `--read-alias', if any. This is useful to explicity search for normal binaries, while using the `--read-alias' option in
an alias or function for which.
--read-functions
Read shell function definitions from stdin, reporting matching ones on stdout. This is useful in combination with using a shell func-
tion for which itself. For example:
which() { declare -f | which --read-functions $@ }
export -f which
--skip-functions
Ignore option `--read-functions', if any. This is useful to explicity search for normal binaries, while using the `--read-functions'
option in an alias or function for which.
--skip-dot
Skip directories in PATH that start with a dot.
--skip-tilde
Skip directories in PATH that start with a tilde and executables which reside in the HOME directory.
--show-dot
If a directory in PATH starts with a dot and a matching executable was found for that path, then print "./programname" rather than the
full path.
--show-tilde
Output a tilde when a directory matches the HOME directory. This option is ignored when which is invoked as root.
--tty-only
Stop processing options on the right if not on tty.
--version,-v,-V
Print version information on standard output then exit successfully.
--help
Print usage information on standard output then exit successfully.
RETURN VALUE
Which returns the number of failed arguments, or -1 when no `programname' was given.
EXAMPLE
The recommended way to use this utility is by adding an alias (C shell) or shell function (Bourne shell) for which like the following:
[ba]sh:
which ()
{
(alias; declare -f) | /usr/bin/which --tty-only --read-alias --read-functions --show-tilde --show-dot $@
}
export -f which
[t]csh:
alias which 'alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'
This will print the readable ~/ and ./ when starting which from your prompt, while still printing the full path when used from a script:
> which q2
~/bin/q2
> echo `which q2`
/home/carlo/bin/q2
BUGS
The HOME directory is determined by looking for the HOME environment variable, which aborts when this variable doesn't exist. Which will
consider two equivalent directories to be different when one of them contains a path with a symbolic link.
AUTHOR
Carlo Wood <carlo@gnu.org>
SEE ALSO bash(1)WHICH(1)