This isn't just bash... It was in ksh before 1988, and the latest POSIX standard says the following about the LINENO variable:
Quote:
Set by the shell to a decimal number representing the current sequential line number (numbered starting with 1) within a script or function before it executes each command. If the user unsets or resets LINENO, the variable may lose its special meaning for the life of the shell. If the shell is not currently executing a script or function, the value of LINENO is unspecified. ...
So, I guess we should also ask for the output from the command:
hoping to verify that the script doesn't assign any value to LINENO and doesn't use unset with LINENO as an operand.
This User Gave Thanks to Don Cragun For This Post:
I don't see any threads like this and I know that a bunch of people have really cool desktops, so I`ll start.
rules
1 no images in your post,attachments only
2 no default desktops, tha would be very much a waste (2 Replies)
Hello I'm new to this forum. So please spare me!
I'm using SCO UnixWare 7.1.4 and created a few accounts. So far so good.
When I login I see: $.
But here I want to see (for example),
/home
25$
So I want to see the pathname where I am without each time typing pwd (2 Replies)
Hello,
I'm using ls -laR to print out a list of file and folders. I want to print only the permission, file size and file name. Also, excluding the '.' and '..'.
result from ls -laR:
total 6
drwxr-xr-x 8 user staff 512 Nov 28 16:17 .
drwxr-x--- 16 user staff 1024... (3 Replies)
I have many files .dat extension.
requirement is to display line no
if no of delimiter does not matches in a given variable
lets say
File: REF_BETOS.dat
HCPCS_OR_CPT_CODE~BETOS_CODE~TERMINATION_DATE
0001F~Z2~
0003T~I4~B20061231
0005F~Z2~~~
0008T~P8~B20061231... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Display the contents of all files ending in a number to the screen
2. Relevant commands, code, scripts,... (2 Replies)
Discussion started by: marcincan
2 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)