Search Results

First cron: Hourly except at 20:00 . What did you intend? I'm assuming that this certain editions of Linux because the syntax is invalid in unix.

Second cron: every 20 mins (On the hour; twenty...

sorry bad post

You mean image-thumb.jpg rather than image.jpg-thumb? You first have to strip the extension off, then back on again.


jpegtopnm "$img" | pnmscale -height 200 | pnmtojpeg >...

You can remove the 'shift', it does nothing there.

Does this code do what you want, or do you still have questions?

not tested....

#!/bin/sh
while :
do
echo 'Please enter a car model: '
read model
awk '$2 ~ m {print $1, $2, $3, $4; _e=1}END{exit _e}' m="${model}" /home/cars/
if [...

awk '$2 ~ m {print $1, $2, $3, $4}' m="${model}" /home/cars/

I just tried and it takes GET arguments, -d will POST data.


curl "https://api-ssl.bitly.com/v3/shorten/?login=<user>&apiKey=<key>&format=txt&longUrl=$url"
works for me.

Also you said it...

Similar to Corona688, but retaining and revising the question.

#/bin/sh
echo "Please enter the name of a subdirectory under /home/other"
read dir
if [ -d "/home/other/${dir}" ]
then
ls...

grep matches strings inside files, not names of directories inside other directories.

You don't have to do something
if [ $? -eq 0 ]
then by the way, you can just do
if something
then
...

if [ `last | grep $1 | wc -l` -eq 0 ]
then
echo "$1 is not online and has never logged in."
else
echo "$1 has been online since `last | grep $1 | tail -1 | awk ' { print $3 " " $4 } '`"
fi

if you want to filter out the last time alone then use:
last |head -1
pandeeswaran@ubuntu:~$ last |head -1
pandeesw pts/0 :0 Mon Jan 16 13:13 still logged in

Yes last command, look at the man pages!

even more streamlined.

if who|grep -qw ^$user >/dev/null 2>&1
then
echo "$user is online"
else
echo "$user not online"
fi

or the one line version.

who|grep -qw ^$user && echo "$user...

who | grep -w ^$user >/dev/null 2>&1
if [ $? -eq 0 ]
then
echo "$user is online"
else
echo "$user not online"
fi


if your grep supports -q option, use it like this who | grep -qw...