Fileglob (things like '*.txt') is not an argument. The shell expands it to all files matching a pattern and then all these files become arguments to a command.
Look at:
and you can see what really echo gets as arguments.
And how avoid? In your example - just use "cp". In more realistic example - call a function with necessary arguments at the front of argument list and work with optional arguments using standard shell technique - $@ array, for loop, shift builtin.
I have written a script which does a following functions:-
1) Check a area if it is mounted or not
2) If the area is not mounted it will prompt the user to mount the are.
3) Once the area is mounted and the option is given as Y or y
the script continues...
My question is will the below... (2 Replies)
hi,
how can i can pass the value of unixformat to date/time? and how can i retrieve the day/month/year from a date?
thanks a lot for your help
ps:i using php (1 Reply)
I use FreeBSD,and use signal,like follows:
signal(SIGHUP,sig_hup);
signal(SIGIO,sig_io);
when I run call following code,it can run,but I find a puzzled question,it should print some information,such as printf("execute main()") will print execute main(),but in fact,printf fuction print... (2 Replies)
I am trying to copy a folder which contains a list of C executables.
It takes 2 mins for completion,where as the entire script takes only 3 more minutes for other process.
Is there a way to copy the folder faster so that the performance of the script will improve? (2 Replies)
Hello again,
Am having an issue now with getting a simple grep command to work within a function..
The function is as below...
function findRecord() {
output=grep "001" recordDatabase
echo $output
}
At the moment the "001"... (3 Replies)
Hi All,
I am new to Unix , there i am facing one problem with sleep command. that is ..
in while loop i have defined sleep function ..
my condition is like this
while #i knew this is infinite loop
do
sleep 200
echo "hello "
done.
this condition will never become .. true... (3 Replies)
Hello, and here's my problem:
I can't get my function to do what I want. When I call my function get_from_A_to_F I give it an argument $remainder. I want my function to substitute a number higher than 9 to a specific letter. If the argument is equal to 10 than it should change it to "A".... (8 Replies)
I am new to this forum. I have a script which randomly throws error.Following are steps followed in this script:
Generate Term file
Remove previous term and rpt files from utility directory.
copy term file to utility directory
call sql to generate rpt file using term file as input
copy the... (4 Replies)
Hi i have a script that check pings and i use flock to so the script wont run
multipul times :
its not the whole script but this is the idea :
(
flock -x -w 3 200 || exit 1
/usr/sbin/fping -c$count -i$interval -a $hosts > $FILE1 2>&1
) 200>/var/lock/.myscript.exclusivelock
now i... (4 Replies)
Hi guys and gals...
I am writing a piece of code that is dash compliant and came across this error.
I have put it in the OSX section as that is what I am using.
I have no idea what the 'dash' version is but was installed about 6 months ago.
MBP, OSX 10.12.6, default terminal running dash on... (4 Replies)
Discussion started by: wisecracker
4 Replies
LEARN ABOUT FREEBSD
apply
APPLY(1) BSD General Commands Manual APPLY(1)NAME
apply -- apply a command to a set of arguments
SYNOPSIS
apply [-a c] [-d] [-#] command argument ...
DESCRIPTION
The apply utility runs the named command on each argument argument in turn.
Character sequences of the form ``%d'' in command, where 'd' is a digit from 1 to 9, are replaced by the d'th following unused argument. In
this case, the largest digit number of arguments are discarded for each execution of command.
The options are as follows:
-# Normally arguments are taken singly; the optional number -# specifies the number of arguments to be passed to command. If the number
is zero, command is run, without arguments, once for each argument.
If any sequences of ``%d'' occur in command, the -# option is ignored.
-a c The use of the character '%' as a magic character may be changed with the -a option.
-d Display the commands that would have been executed, but do not actually execute them.
ENVIRONMENT
The following environment variable affects the execution of apply:
SHELL Pathname of shell to use. If this variable is not defined, the Bourne shell is used.
FILES
/bin/sh default shell
EXAMPLES
apply echo *
is similar to ls(1);
apply -2 cmp a1 b1 a2 b2 a3 b3
compares the `a' files to the `b' files;
apply -0 who 1 2 3 4 5
runs who(1) 5 times; and
apply 'ln %1 /usr/joe' *
links all files in the current directory to the directory /usr/joe.
HISTORY
The apply command appeared in 4.2BSD.
AUTHORS
Rob Pike
BUGS
Shell metacharacters in command may have bizarre effects; it is best to enclose complicated commands in single quotes ('').
The apply utility does not recognize multibyte characters.
BSD December 13, 2006 BSD