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I'm just learning syntax differences. Thank you for your reply I appreciate it!

Hi all I want to make sure I was understanding this correctly

if a cron job command was

* */20 * * * command

does that mean this command will run every 20 hours?

also what is the...

sure thing it is a for loop


#!/bin/bash

for img in *.jpg
do
if [ $# -gt 0 ]
then
jpegtopnm "$img" | pnmscale -height 200 | pnmtojpeg > "${img%.jpg}-thumb.jpg"
...

lets say I am printing something out


echo "Please enter a valid username"


and its being printed out 5 times, is there any way I can limit to only being displayed ONCE. I tried echo -n but...

Hi thanks for the reply

this is what I am getting back right now im not entirely sure but it seems to be an improvement

Here is what I have so far


#!/bin/bash

while [ $# -gt 0 ]
do
read image
jpegtopnm $image | pnmscale -height 200 | pnmtojpeg > $image-thumb
echo $image-thumb
...

What I did is use an until loop and it worked so far but after adding in the prompt to return an error


#!/bin/sh
echo Please enter a car model:
read model

echo $model | grep /home/cars >...

this worked perfectly thanks a lot!

And do you know how I can re-prompt for input if there is no match? Basically restart the entire process.

---------- Post updated at 10:59 AM ----------...

I am making a script that reads in the model of a car and then searches a file and displays the make model and price of anything matching the input provided. here is what I have so far


#!/bin/sh...

thanks for the reply I am using bash shell

as for posting data, how can I use 'curl -d' to post the short URL? Is it going to automatically return the short URL on its own or is there a specific...

Hi all

so I'm new to scripting but I am making a script that is a url shortener. It will take a url off the command line and spit back the shortened version using bit.ly's api

this is what I...

Hello all! I am writing a script that takes in a directory name as input and if the directory exists, it shows the files inside the directory

here is what I have so far (incomplete) (mostly like...

I have a script that displays whether a user is online or not and if they are it displays how long and if not it displays the last time they were logged on.

Now I am trying to make it so if a user...

thank you

im writing a script that displays the last time the user has been on and a quick question here

Currently it displays the last time the user has been on but multiple times, will using...

When I use who it shows who is online and from what time they logged in but is there a way I can see the last time someone was logged on if they aren't online? Is it with the who command?
thx

gah I should have known to pipe grep I completely forgot

still learning. . .

thanks guys:)

solved

Hi everyone, i have made a very simple script where it reads the user input and converts the number from celcius to faranheit but instead of running the command and prompting the user for input I...