Hi all
Does anyone have a script that will allow me to stop inside a while read loop.
I want to pause the loop until a enter is pressed.
e.g.
While read line
do
echo something
if LINECOUNT > 40
then
read ENTER?"PRESS ENTER TO CONT..."
... (3 Replies)
hi!
i need to do a ksh script that uses a wile loop that is fed form below
while read line
do
some things
done < myfile
inside the while loop i need to read user input to ask the user what he wants to do, but "read" reads the file, and not the standard input
while read line
do
... (2 Replies)
Hello, i know how to retrieve a user input (read), and how to manage the different options (case statement).
But... could anybody show me a script that, if the user option is incorrect, don't allow to continue the excution, i.e., if the value entered is not 1 or 2, the script shows a question.
... (2 Replies)
until
do
read -p "Invalid cars. Try againa" cars1
done
Ok i have the above code, im getting users input and if it doesnt match in the file the user has to try again untill its correct
But when i run this it gives me an error saying
./Cars.bash: line 43: (2 Replies)
Hi Dears,
I have one script to create new users with information in one plain text file. This script will read all lines in the file and create one users for one line.
Sample file:
#action;login,full name title,expire date,project
+;gmwen,Bruce Wen QA,04/01/2012,BT
+;xxdeng,Shown Deng... (4 Replies)
I need to Write a shell script that allows some system-administration tasks to be preformed automatically from a menu-driven interface. with automated following tasks:
Copy directory tree
Delete files or directories
Output Information (this part is done )
*Copy directory tree
The “Copy... (2 Replies)
I have a shell script, and its pretty much done, I decided to add a loop that ends or continues depending on user input. like "would you like to continue?" and if I hit y or yes it will run the loop again until I hit n or no and breaks out of the loop.
To be hones I didn't think I needed to add... (2 Replies)
Hi,
This query is a part of a much more lengthy script.
I wish to look for all the files in a folder named "data" which in this case has two files i.e. plan.war and agent.properties. For all the files found under data I wish to ask the user as to where they wish copy the files to.
Below,... (14 Replies)
Hi All,
#!/bin/bash
#Just trying to check if letters are in the user input. Any tips?
# I have tried regexp and using 0-9 etc, i cannot get this to work either in just an if statement or while in a loop.
echo "Please pick a number"
read num
if ; then
echo "Please enter a number"... (7 Replies)
Discussion started by: jvezinat
7 Replies
LEARN ABOUT REDHAT
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)