I have a script that when called can have 1 or 2 command arguments. If only 1 command argument is passed into the script how can I check that the second argument is null? I am working in Korn shell in a UNIX environment.
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 SUSE
shcomp
SHCOMP(1) Korn shell utilities SHCOMP(1)NAME
shcomp - compile a shell script
SYNOPSIS
shcomp [ options ] [infile [outfile]]
DESCRIPTION
Unless -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh can read and execute with
the same effect as the original script.
Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly.
If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages that need to be translated to
locale specific versions for internationalization.
If outfile is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from
standard input.
OPTIONS
[D dictionary] Generate a list of strings that need to be placed in a message catalog for internationalization. [n noexec] Displays warn-
ing messages for obsolete or non-conforming constructs. [v verbose] Displays input from infile onto standard error as it reads it.
EXIT STATUS
0
Successful completion.
>0
An error occurred.
SEE ALSO ksh(1)IMPLEMENTATION
version
shcomp (AT&T Research) 2003-03-02
author
David Korn <dgk@research.att.com>
copyright
Copyright (c) 1982-2010 AT&T Intellectual Property
license
http://www.opensource.org/licenses/cpl1.0.txt
2003-03-02 SHCOMP(1)