In a script , i would like to check if the argument ( $1, $2 inside the script) contain wildcard (*,? etc). how do i do it?
> script_name arg1 arg*
$1 (arg1) does not contain wildcard, but $2 (arg* )contains wildcard. how can i tell in script?
i need to do this is because :
if arg1... (3 Replies)
Here is the command in question for f in $(<uploads); do .
I only want this to execute if uploads is not empty. If uploads is empty I want the script to quit, actually before the for command. If its not apparent uploads is a text file.
Chris (3 Replies)
Hello All,
I have written shell script whcih at the max 3 parameters.
When only one commandline argument and other two command line arguments are passed as empty string like
eg : archive ' ' ' '
Then i need to check whether the commandline... (12 Replies)
How do I check if a file is empty in a sh script
I want to test in my shell script if the output file is empty and if it is do one thing and if it isnt empty do another?
any ideas? (8 Replies)
I have the list of users in user.log, under each user folder there is sub1 folder is there. i want to check whether sub1 is empty or not, if it is empty i have to skip that user user folder and iterate next user folders. i have the sample code,its not giving not proper results.
while read line... (8 Replies)
I need to check if a directory is empty using an if condition
in the pseudocode below
if ; then
else
although i looked at a few forums on this topic, I left feeling a little unclear and i could not use the command successfully
what can i substitute in the if conditon above,... (2 Replies)
If ($argv == “-debug”) then
Echo “in loop”
Endif
But this is not working. If I modify this code and remove “-“, then it works.
Similarly I am getting problem using grep command also
Grep “-debug” Filename
Can someone please help me on how to resolve these... (1 Reply)
hi,
i want to check whether a a variable contains some value or is empty in a shell script. so if the variable contains some value i want to do some job and if the variable doesnt contain any value then i need to skip that job.
here is a sample script
read_filenames.sh contains
... (5 Replies)
All,
I'm writing an argument checking block and running into an error. I want to confirm that $1 is one of two values. Here is what I have:
if ]; then
echo -e "\nPlease check your first augument. You used \"$1\"
which is not recognized. Please see usage:"
usage
... (9 Replies)
Hello
So i have that script collection, in which i have a single script to create a configuration file.
In there, i have multiple occourences of something like this:
prj_title=$(tui-read "What is the TITLE? ($prj_name):")
] && prj_title="${prj_name/_/ }"
They all work as expected, if... (5 Replies)
Discussion started by: sea
5 Replies
LEARN ABOUT NETBSD
leave
LEAVE(1) BSD General Commands Manual LEAVE(1)NAME
leave -- remind you when you have to leave
SYNOPSIS
leave [[+]hhmm]
DESCRIPTION
leave waits until the specified time (within the next 12 hours), then reminds you that you have to leave by writing to the TTY that you exe-
cuted leave on.
You are reminded 5 minutes and 1 minute before the actual time, at the time, and every minute thereafter. When you log off, leave exits just
before it would have printed the next message.
OPTIONS
hhmm The time of day is in the form hhmm where hh is a time in hours (on a 12 or 24 hour clock), and mm are minutes.
However, all times are converted to a 12 hour clock, and assumed to be in the next 12 hours. An attempt to set an alarm for farther
into the future will be truncated to within the next 12 hours.
+ If the time is preceded by '+', the alarm will go off in hours and minutes from the current time.
If no argument is given, leave prompts with "When do you have to leave?". A reply of newline causes leave to exit, otherwise the reply is
assumed to be a time. This form is suitable for inclusion in a ~/.login or ~/.profile.
SEE ALSO calendar(1), csh(1), sh(1)HISTORY
The leave command appeared in 3.0BSD.
BUGS
In the modern age with X(7) and window multiplexing programs like window(1) and screen(1), the leave command's reminders and admonitions
might not be seen if the user has the window where leave was started minimized or obscured.
This all begs for a more general user notifications system to be implemented.
BSD January 19, 2002 BSD