Hey all,
I ran some simulations, of which the output is 100s of files. I've used grep to extract the vital information needed from the files. This has made my task somewhat easier. But I still need to perform some mathematical calculations (average and geometrical average) on the results of the... (9 Replies)
Hi,
I've been trying to replace the numbers in the first column of my text file with all ones, unless the number is equal to 8. I have this:
1 1 11 123 258
2 1 9 135 175
1 1 15 143 274
8 1 13 153 172
8 1 13 154 166
8 1 13 154 167
3 1 15 237 255
4 1 15 243 202
1 1 13 133 166... (4 Replies)
Hi,
I have lines in some files that look exactly as below, and the line numbers they occur in are always the same. (Lines 136-139)
W 0.00000000 0.00000000 2.00000000
W 0.50000000 0.50000000 2.50000000
W 0.00000000 0.00000000 3.00000000
W 0.50000000 0.50000000 3.50000000
I'd like to... (0 Replies)
Hi people :)
I'm learning shell scripting using bash and I want to generate 4 floating point number with 5 decimal places and write them to a file and a variable. I've done all this except the $RAMDOM enviroment variable does not generate a float number but a integrer.
I hope you could... (3 Replies)
Hi,
I need to match up some numbers in one file to the closest numbers in other file and produce an output file.
File one (f1.txt) is laid out like this
PCode Lon Lat
AB10 1AA 57.148235 -2.096648
BB2 3JD 53.728563 -2.47852
LU4 9ET... (4 Replies)
Hello All,
I was wondering if someone might know how to do this. I have a word list that is format like the example below. I need to take away the :number after that... is there some kind of command I could use to remove them?
123456:5562
password:1507
123456789:989
qwerty:877... (7 Replies)
Hello everyone,
I need your assistance with bash.
I want to sum up some numbers, that's not the big problem i think, but the values i want to some depending on another number.
For example, I have a file with some rows of content.
Number 1, Number 2, other content.
I want to sum up number... (4 Replies)
Hello,
I have the following script
while read id fraction
do
sambamba -h -f bam -t 10 --subsampling-seed=50 -s $frac ${id}.bam -o ${id}.out.bam
done < fraction.txt
where fraction.txt has two columns (id,fraction) and 50 rows
I am unable to run this as bash is not able to read the second... (2 Replies)
I have the following code snippet in bash
if ]; then
minm=`echo "$diff" | bc`
fi
It works well for most of the cases. However lets say diff is -0.17 and minm is -0.0017. In such a case the comparison seems to fail. Is the correct way to compare a mixture of positive and... (12 Replies)
Hi,
is possible in bash script change numbers "01140" to "0 hours, 11 minutes, 40 seconds" ?
Thanks! (8 Replies)
Discussion started by: simpsonss
8 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)