Hi everyone, first time visitor to these forums here.
Keeping a long story short I've been attempting to learn how to code in bash. I have VERY little previous experience with coding languages besides simply copying and pasting batch scripts for Windows. So, with that in mind I've followed a few tutorials on how to use some basic commands and how to write and execute basic scrips in bash. I'm now trying to put what I've learned to the test and am attempting to write out an entire (admittedly simple and useless) script without following any kind of tutorial. Here's what I have so far:
It's just a simple script that asks the user to input their information, and confirm that the details provided are correct. What I'm trying to do is have it so that if the details are incorrect and the user inputs "No" after being asked to confirm their details, a message is displayed asking them to enter their information again, and then return to the beginning of the script. However I'm struggling with getting to grips with the "while" command. Currently it doesn't matter what the user inputs as an answer, the script will restart anyway.
I've attempted to look online at some "while" loop tutorials, but so far I'm either not looking in the right places or It's just going straight over my head right now.
Can anyone offer some advice? If anyone does I really would appreciate it, I know that this is incredibly dull and basic for most of you...
I have a folder with lots of file. e.g. a.txt, b.txt, c.txt.... I want to put these files from the source directory and place them in a destination directory in a specific order, such as /destination/a/a.txt, /destination/b/b.txt, /destination/c/c.txt, ......
Please help. Thx :confused: (3 Replies)
Hey all I'm working on a script that will scour a directory of 6000+ files for a line that at the end has a number.
Something like 'The number of outputs is: 39200'
I'm trying to devise a script to add all of these numbers up, so far I have the grep statement that pulls out each individual... (7 Replies)
. ./testFile.sh
url=http://ichart.finance.yahoo.com/table.csv?s= suf=&d=5&e=9&f=2009&g=d&a=1&b=4&c=1999&ignore=.csv
wget $url$s1$suf;
sleep 10;
cat header.txt > $s1.txt;
chmod 777 $s1.txt;
sed '1d' table.csv?s\=$s1 >> $s1.txt;
rm -Rf table*
Very new at shell scripting as you can see... (3 Replies)
Hello there
Been using Unix bash scripting for two days now so am very new to this. I am currently doing a project now and i'm basically making a noughts and crosses game (or tic tac toe).
I have created the board using an array. When I try and check to see if the array is empty using an If... (3 Replies)
Hello,
I'm new to Sheel script and I need your help for a script I need to develop (for me).
Indead, I have a software which log all entry from internet and save it in text file.
But, the log is practically unreadable because every 256 characters jump to a new line (even if the message is... (5 Replies)
1. The problem statement, all variables and given/known data:
Arguments:
http://farm9.staticflickr.com/8070/8212131370_8b6e8c10c5_c.jpg
I am given these three arguments. $1, $2, $3
The first argument is the path to a directory.
So, how would I go into the directory and compare files?
I... (5 Replies)
Hi All,
I have a script that I wrote on a bash shell, I use it to sort files from a directory into various other directories. I have an variable set, which is an array of strings, I then check each file against the array and if it is in there the script sorts it into the correct folder.
But... (5 Replies)
Hi All,
I am trying to monitor CPU load of few processes, with the same name.
The output that I get from top is the following
28171 root 20 0 1089m 21m 3608 S 103 0.3 15:16.89 /opt/ppp//h264rtptranscoder.bin --videoPort=14504 --audioPort=14505
27589 root 20 0 1060m 23m... (3 Replies)
Hi everyone,
i have the following script.sh:
foo='lsusb | grep Webcam | cut -c16-18'
sudo /home/user/public/usbreset /dev/bus/usb/001/$foo
when i try to call this script from python using subprocess.call("script.sh", shell=True) it seems that only 'sudo /home/user/public/usbreset' is being... (6 Replies)
Hi all
I have the folloing process that needs checking often:
ps -ef | grep ih
bscsrtx 206 15901 0 11:28:10 pts/6 0:00 fih -r4
bscsrtx 218 15901 0 11:28:27 pts/6 0:01 aih
bscsrtx 29763 15901 4 11:27:16 pts/6 0:59 rdh -prih
root 429 27268 0 11:30:15 pts/td ... (13 Replies)
Discussion started by: fretagi
13 Replies
LEARN ABOUT LINUX
shtool-echo
SHTOOL-ECHO.TMP(1) GNU Portable Shell Tool SHTOOL-ECHO.TMP(1)NAME
shtool-echo - GNU shtool echo(1) extensional command
SYNOPSIS
shtool echo [-n|--newline] [-e|--expand] string
DESCRIPTION
shtool echo is an echo(1) style command which prints string to stdout and optionally provides special expansion constructs (terminal bold
mode, environment details, date, etc) and newline control. The trick of this command is that it provides a portable -n option and hides the
gory details needed to find out the environment details under option -e.
OPTIONS
The following command line options are available.
-n, --newline
By default, output is written to stdout followed by a "newline" (ASCII character 0x0a). If option -n is used, this newline character is
omitted.
-e, --expand
If option -e is used, string can contain special "%x" constructs which are expanded before the output is written. Currently the
following constructs are recognized:
%B switch terminal mode to bold display mode.
%b switch terminal mode back to normal display mode.
%u the current user name.
%U the current user id (numerical).
%g the current group name.
%G the current group id (numerical).
%h the current hostname (without any domain extension).
%d the current domain name.
%D the current day of the month.
%M the current month (numerical).
%m the current month name.
%Y the current year.
EXAMPLE
# shell script
shtool echo -n -e "Enter your name [%B%u%b]: "; read name
shtool echo -e "Your Email address might be %u@%h%d"
shtool echo -e "The current date is %D-%m-%Y"
HISTORY
The GNU shtool echo command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1998 for Website META Language (WML)
under the name buildinfo. It was later taken over into GNU shtool.
SEE ALSO shtool(1), echo(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-ECHO.TMP(1)