I need your expertise anyone. I'm trying to remove part of a id # in a script. Reason, the part of the id is a underscore that is making my life impossible. I simply cannot handle all the requests and modify every single one in vi or edt. So I wanted to modify the script..
For example ... (12 Replies)
Hey guys....
couple questions...
I am working a problem set and can't answer this:
1) Suppose you are in a directory that contains a file called "foo." You want to create a new file called "bar" that contains the sorted contents of "foo" in the parent directory of the one you're in. How... (8 Replies)
can someone explain the meaning of the following shell commands:
1. who / wc -l
2. who / sort > user_names
3. cat students > new_students
4. current_day='date / cut -cl-3'
i would also appreciated if you could tell me some things about the umask
1. what is a good umask value and why?
2.... (2 Replies)
i have a file having content
a|b|c
1|2|33
4|6|55
end
a|b|d
3|4|55
end
a|b|c
45|67|98
end
so i want to print 3rd field of header a|b|c and footer end.
e.g. o/p should be
33
55
98 (7 Replies)
Input1 : "06:28:45 28.08.2010|SCHEDULE: Started program POSG1.PLK110 (#J2325) has completed successfully"
or
Input2 : "06:28:45 28.08.2010|SCHEDULE: Started program POSG1.PLK110 has completed successfully"
Output :06:28:45 28.08.2010 08/27/10
Please give me an single awk command ASAP... (0 Replies)
I have been using this simple grep command to extract fields from a file that ALPHANUMERIC field has been set to 16
grep -w 'ALPHANUMERIC *16' filename
------------------------- sample data file
SAMP_RICS "SAMPLE RICS" 5694 NULL ALPHANUMERIC 60 RMTES_STRING ... (11 Replies)
I work on various messages received from server and want to write a python script that can sort messages with unique flag values and give me the output in a text file.
I get these messages in the form of .zcap file from server and I use an internal tool to filter:
Step 1) Zcap file to get... (1 Reply)
Discussion started by: Vijeta Laad
1 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)