Is there a way to get the command line arguments.
I am using getopt(3) but if the arguments are more than one for a particular option than it just ignores the second argument. For eg
./a.out -x abc def
now abd will be got with -x using getopt "( x : )" and string abc\0def will get stored... (7 Replies)
how to parse the command line argument to look for '@' sign and the following with '.'.
In my shell script one of the argument passed is email address. I want to parse this email address to look for correct format.
rmjoe123@hotmail.com has '@' sign and followed by a '.'
to be more... (1 Reply)
Hi,
My perl script takes few switches which i'm parsing through GetOpt::Long module.
My script looks like something :
myscript.pl --file="foo" --or --file="bar"
The --file switch takes 2 arguments foo and bar.
The 2 values of file are separated by --or switch. I want to ensure that... (1 Reply)
Looking for a little help parsing some command line arguments in a bash script I am working on, this is probably fairly basic to most, but I do not have much experience with it.
At the command line, when the script is run, I need to make sure the argument passed is a file, it exists in the... (3 Replies)
I have a simple script that builds a complex program call which passes a number of parameters to the program. I'm trying to enhance the script to include the value of the command line parameter in the name of a file being created. The problem I'm having is that the parameter may include a forward... (11 Replies)
Hi,
I've a python script called aaa.py and passing an command line option " -a" to the script like, ./aaa.py -a
& Inside the script if the -a option is given I do some operation if not something else.
code looks like
./aaa.py -a
.
.
if options.a
---some operation---
if not options.a... (1 Reply)
]I have a string like "/abc/cmind/def/pq/IC.2.4.6_main.64b/lnx86" and this string is given by user. But in this string instead of 64b user may passed 32 b an i need to parse this string and check wether its is 32b or 64 b and according to it i want to set appropriate flags.
How will i do this... (11 Replies)
I've defined the order of elements which needs to be print in a order in a variable. please let me know how can I use it in awk command
... (2 Replies)
I would like to take a fasta file formated like
>0001
agttcgaggtcagaatt
>0002
agttcgag
>0003
ggtaacctga
and use command line perl to move the all sample gt 8 in length to a new file. the result would be
>0001
agttcgaggtcagaatt
>0003
ggtaacctga
cat ${sample}.fasta | perl -lane... (2 Replies)
Hi Experts,
How do I parse a XML with below contents
<saw:user name="mbussey@xyz.com" />
<saw:user name="kimmy.chan@pqr.com" />
<saw:user name="chudgins@gmail.com" />
and retrieve below output ?
mbussey@xyz.com
kimmy.chan@pqr.com
chudgins@gmail.com
... (17 Replies)
Discussion started by: pauldx
17 Replies
LEARN ABOUT LINUX
rbash
RBASH(1) General Commands Manual RBASH(1)NAME
rbash - restricted bash, see bash(1)RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO bash(1)GNU Bash-4.0 2004 Apr 20 RBASH(1)