Hi,
I am new to unix. Is their a way to pass the output of the line below to a variable var1.
ls -1t | head -1.
I am trying something like var1=ls -1t | head -1, but I get error.
Situation is: I get file everyday through FTP in my unix box. I have to write a script that picks up first... (1 Reply)
I have a shell script which does the encryption of a file where i am passing the file name as a command line argument,but later on the script waits on the screen to enter Y or N
what is the command i should be using on the shell script
#!/bin/bash -x
outfilename=file.out
echo... (8 Replies)
Hi all
I have got a file digits.data containing the following data
1 3 4
2 4 9
7 3 1
7 3 10
I am writing a script that will pass an argument from C-shell to nawk command. But it seems the values in the nawk comman does not get set. the program does not print no values out. Here is the... (1 Reply)
Hi,
I am facing a problem to pass command line arguments that looks like
<script name> aa bb "cc" dd "ee"
I want to pass all 5 elements include the " (brackets). when I print the @ARGV the " disappear. I hope I explain myself
Regards,
Ziv (4 Replies)
I have one working awk command line. Which taking data from the “J1202523.TXT” file and generating the “brazil.dat” file. PFB code.
awk '{ DUNS = substr($0,0,9);if ( substr($0,14,3) == "089" ) print DUNS }' J1202523.TXT > Brazil.dat
But now I want to pass two parameter as a command line argument... (4 Replies)
Hello all,
New to C and I'm trying to write a program which can run a unix command. Would like to have the option of giving the user the ability to enter arguments e.g for "ls" be able to run "ls -l".
I would appreciate any help.
Thanks
#include <stdio.h>
#include <unistd.h>
#include... (3 Replies)
Hi,
I'm trying to pass the variable in the find command like below
a=log.20111114
find /apps/file3_logs/env3/ -name '$a' -exec ls -lrt {} \;
but it's not working
thanks in advance.
Regards
Thelak (3 Replies)
Can we pass an argument to cut command as below
Suppose cut command is used in for or while loop and we need to pass the incremental counter
cut -f$i
Here $i is an argument.
Like wise it has to come
cut -f1
cut -f2
Where i=1,2,3,.... (1 Reply)
Hi.
I'm trying to do a "simple" thing.
grep -rls grepped_exp path | xgs
where xgs is an alias to something like:
xargs gvim -o -c ":g/grepped_exp"
now the problem is that I want to pass the "grepped_exp" to the piped alias.
I was able to do something like what I want without the... (4 Replies)
Hi All,
I am having command to run which will take argument as input file. Right now we are creating the input file by cat and executing the command
ftptransfer -i input file
cat >input file
file1
file2
cntrl +d
Is there a way I can do that in a single command like
... (1 Reply)
Discussion started by: arunkumar_mca
1 Replies
LEARN ABOUT OPENSOLARIS
getopt
getopt(1) User Commands getopt(1)NAME
getopt - parse command options
SYNOPSIS
set -- ` getopt optstring $ * `
DESCRIPTION
The getopts command supersedes getopt. For more information, see NOTES below.
getopt is used to break up options in command lines for easy parsing by shell procedures and to check for legal options. optstring is a
string of recognized option letters; see getopt(3C). If a letter is followed by a colon (:), the option is expected to have an argument
which may or may not be separated from it by white space. The special option - is used to delimit the end of the options. If it is used
explicitly, getopt recognizes it; otherwise, getopt generates it; in either case, getopt places it at the end of the options. The posi-
tional parameters ($1 $2 ...) of the shell are reset so that each option is preceded by a - and is in its own positional parameter; each
option argument is also parsed into its own positional parameter.
EXAMPLES
Example 1 Processing the arguments for a command
The following code fragment shows how one might process the arguments for a command that can take the options -a or -b, as well as the
option -o, which requires an argument:
set -- `getopt abo: $*`
if [ $? != 0 ]
then
echo $USAGE
exit 2
fi
for i in $*
do
case $i in
-a | -b) FLAG=$i; shift;;
-o) OARG=$2; shift 2;;
--) shift; break;;
esac
done
This code accepts any of the following as equivalent:
cmd -aoarg filename1 filename2
cmd -a -o arg filename1 filename2
cmd -oarg -a filename1 filename2
cmd -a -oarg -- filename1 filename2
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
|CSI |enabled |
+-----------------------------+-----------------------------+
SEE ALSO Intro(1), getopts(1), getoptcvt(1), sh(1), shell_builtins(1), getopt(3C), attributes(5)DIAGNOSTICS
getopt prints an error message on the standard error when it encounters an option letter not included in optstring.
NOTES
getopt will not be supported in the next major release. For this release a conversion tool has been provided, namely, getoptcvt. For more
information, see getopts(1) and getoptcvt(1).
Reset optind to 1 when rescanning the options.
getopt does not support the part of Rule 8 of the command syntax standard (see Intro(1)) that permits groups of option-arguments following
an option to be separated by white space and quoted. For example,
cmd -a -b -o "xxx z yy" filename
is not handled correctly. To correct this deficiency, use the getopts command in place of getopt.
If an option that takes an option-argument is followed by a value that is the same as one of the options listed in optstring (referring to
the earlier EXAMPLES section, but using the following command line:
cmd -o -a filename
getopt always treats it as an option-argument to -o; it never recognizes -a as an option. For this case, the for loop in the example shifts
past the filename argument.
SunOS 5.11 7 Jan 2000 getopt(1)