hello all, I have a script (Solaris v8 ksh) monitoring an inbound directory for reports. The script will then capture the report based on a set of circumstances. However I am unable to capture a report larger then 2-Gig in size due to program limitations. What I need to do is pause the monitor... (6 Replies)
Can anyone tell me why this section of my script doesn't work? The script is designed to accept piped data, store it in a temporary location, and then prompt the user for their user name. It doesn't stop to read the username, however. It just finishes.
It is called like:
cat datafile | myscript... (3 Replies)
echo "enter employee #:/c"
read employee
grep -w $employee /tmp/file.txt
when it asked me employee #, i typed employee, worked fine.
when it asked me employee #, i type ENTER, it just sit there.
if someone type in NULL or ENTER key, i want to exit out. (2 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)
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)
Hello,
I want to use the read command in order to input a keyword from the keyboard.
I then want to use this keyword in a grep command.
How to I input a phrase as a keyword? For example if I use
read keyword
"today is"
and then use grep, I get "No such file or directory" error. (6 Replies)
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 $email is empty and proceed if not.But, i... (7 Replies)
Discussion started by: aravindadla
7 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)