I did a search for this topic but I couldn't find it and I was sure I have seen something similar before (hard because I am not sure of the criteria for the keywords)
What I was looking for was to be able to echo a message to the screen from a bash.sh script at the same time logging it to a... (2 Replies)
Major Newbie here folks. I'm trying to set a variable to my Home directory and then echo it to the screen.
Any and all help is greatly appreciated.
Thanks
Anna (3 Replies)
Please help me to simplify my below script.
#!/bin/bash
LOG_FILE=/tmp/log.txt
echo "Hello"
echo "Hello" >> /tmp/log.txt
Is there anyway, that I can echo "Hello" to both screen and file with one single echo command ? (6 Replies)
I have two text files, each of then only containing ONE line and NO carraige return or white space at the end...how do I echo both of these text files to the screen without putting an extra line? I want to do this from the command line.
file1.txt:
this is file1.txt 1
file2.txt:
this is... (4 Replies)
Hi folks.
Within a script, i am trying to redirect the output of my commands to both log file and onscreen...
Here is the section, where i write to the logfile. But i'd like to send the "echo "Creating LUN $2$COUNTER..." to screen as well...
Can that be done?
Thanks.
{
subtitle... (2 Replies)
Hi,
i need to execute echo command to write in a txt file on a remote machine. i did it in this way:
ssh user@remotemachine "echo "put text here" > /home/user/myfile.txt"
I tried to run the same command within a detached screen in this way:
ssh user@remotemachine screen -dm "echo "put... (3 Replies)
In shellscript, I want to display echo message in console and in the log file. please help me to display this message in two places.
I am using below statment to display messsage, but it is displaying in log file only.
echo "Server Already running" >> serverlog 2>&1 (3 Replies)
Hi, please help with below time conversion to minutes.
one column values:
2 minutes 16 seconds 420 msec
43 seconds 750 msec
0 days 3 hours 29 minutes 58 seconds 480 msec
11 seconds 150 msec
I need output in minutes(total elapsed time in minutes) (2 Replies)
Hi all,
System Ubuntu 16.04.3 LTS
i have the following log
INFO 2019-02-07 15:13:31,099 module.py:700] default: "POST /join/8550614e-3e94-4fa5-9ab2-135eefa69c1b HTTP/1.0" 500 2042
INFO 2019-02-07 15:13:31,569 module.py:700] default: "POST /join/6cb9c452-dcb1-45f3-bcca-e33f5d450105... (15 Replies)
Discussion started by: charli1
15 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)