[ function ] name () compound-command [redirection]
This defines a function named name. The reserved word function is optional. If the function reserved word is supplied, the parentheses
are optional. The body of the function is the compound command compound-command (see Compound Commands above). That command is usually
a list of commands between { and }, but may be any command listed under Compound Commands above. compound-command is executed whenever
name is specified as the name of a simple command. Any redirections (see REDIRECTION below) specified when a function is defined are
performed when the function is executed. The exit status of a function definition is zero unless a syntax error occurs or a readonly
function with the same name already exists. When executed, the exit status of a function is the exit status of the last command exe-
cuted in the body. (See FUNCTIONS below.)
Tbh, I usually write them even without "function" in front of them.
Hi everybody in the forum,
I want to create an empty file of say some 1MB ,i mean at the command line itself.How is this possible??????EEK! (4 Replies)
Hi,
I am trying to write script to copy some files(/ppscdr/cdrp2p/temp/) from one directory to another directory using shell script. see the script below,
#!/bin/sh -f
dir_name=20061105
mkdir ${dir_name}
cd /ppscdr/cdrp2p/temp
pwd
cp p2p${dir_name}*.*... (4 Replies)
I'm trying to write a history feature to a very simple UNIX shell that will list the last 10 commands used when control-c is pressed. A user can then run a previous command by typing r x, where x is the first letter of the command. I'm having quite a bit of trouble figuring out what I need to do, I... (2 Replies)
In OS X I'm currently writing a bash script that requires writing to preference file. I may eventually want to share it with users on other Unix-like OSs and would like to accommodate for that possibility ahead of time.
Most OS X applications save preferences in xml-format plist files. These... (4 Replies)
Hey all,
I need to know how many lines of C code are in a source bundle. I have extracted the bundle and hence there is a big directory tree with C files everywhere.
So far I have something like:
find . -name "*.c" | grep \ ./*/*/*/*/*/*
obviously wrong, if someone could help me out... (3 Replies)
Hi,
Can someone help me with creating a bash shell script.
I need to create a script that gets a positive number n as an argument.
The script must create n directories in the current directory with names like map_1, map_2 etcetera. Each directory must be contained within its predecessor. So... (7 Replies)
Hello senior members,
I am a fairly newbie here. I just want to ask one question that how can once create one's own command interpreter/ shell like bash in unix/linux.
I need to execute basic commands like pipes and i/o.
Any help in this matter ?? (3 Replies)
Hello.
I need to write a command line interface that can be invoked either directly from the shell (command sub-command arguments), or as a shell that can process sub-commands.
i want to use bash auto completion for both scenarios.
example: lets say my CLI module is called 'mycli' and there... (5 Replies)
Options::
A)$shell
B)echo $ bash
C)echo $ O
D)$ O (1 Reply)
Discussion started by: raghugowda
1 Replies
LEARN ABOUT SUSE
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 filename 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)