Help with handling columns in bash

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash formatting data into columns

Hi guys, I'm trying to create a table of aggregated data using just bash commands. My data is in three columns, for example: 2014-01-01 testA 64 2014-01-01 testB 27 2014-02-01 testA 31 2014-02-02 testB 29 2014-02-02 testC 12 And the result I am looking for is: ...

2. Shell Programming and Scripting

Select columns from a matrix given within a range in BASH

I have a huge matrix file which looks like this (example matrix): 1 2 3 5 4 5 6 7 7 6 8 9 1 2 4 2 7 6 5 1 3 2 1 9 As one can see, this matrix has 4 columns and 6 rows. But my original matrix has some 3 million rows and 6000 columns. For example, on this matrix I can define my task as...

3. Shell Programming and Scripting

BASH - Handling background processes - distributed processing

NOTE: I am using BASH and Solaris 10 for this. Currently in the process of building a script that has a main "watcher" daemon that reads a configuration file and starts background processes based on it's global configuration. It is basically an infinite loop of configuration reading. Some of the...

4. Shell Programming and Scripting

how can i group by same columns by another columns in Bash

how can i group by same columns by another columns in Bash Eq. this is a csv file Co1 Co2 Co3 Co4 A A 1,000 1,000 A B 2,000 1,250 A A 2,000 3,002 A C 2,000 3,005 how can i get the result of like this Co1 Co2 Co3 Co4 A A 3,000 ...

5. UNIX for Dummies Questions & Answers

File handling in bash shell scripting

i am new to shell scripting and stuck at one place in my program. i am reading data from one structured file and extracting some data from particular lines and then writing into the output file. In that reading input file line by line from while loop. while read line do rectype=line...

6. UNIX for Advanced & Expert Users

Unix Bash: substitute columns in .csv using other .csv columns

Hi All, I have two .csv's input.csv having values as (7 columns) ABC,A19907103,ABC DEV YUNG,2.17,1000,2157,07/07/2006 XYZ,H00213850,MM TRUP HILL,38.38,580,23308,31/08/2010 output.csv having (25 columns) A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y...

7. Shell Programming and Scripting

How can I print array elements as different columns in bash?

Hi Guys, I have an array which has numbers including blanks as follows: 1 26 66 4.77 -0.58 88 99 11 12 333 I want to print a group of three elements as a different column in a file as follows:(including blanks where there is missing elements) for.e.g. array element #7...

8. Shell Programming and Scripting

File handling with bash shell scripting

Hi all, Can anyone guide to get tricks for file handling in bash shell? Thanks in advance. Thanks Deepak

9. Shell Programming and Scripting

how to converting rows to columns, bash

I have in file these words: @fraza1 = rw @fraza2 = r @fraza3 = r @fraza4 = r @fraza5 = r @fraza1 = r @fraza6 = r @fraza7 = r @fraza2 = r @fraza8 = r @fraza9 = r ... I would like so that: ,rw,@fraza1 ,r,@fraza2

10. Shell Programming and Scripting

handling filespec in bash script

hi there, i just need a help handling the output of filespec in case has been picked im writing a bash script similar to the command ls, and ive done everything except handing the filespec which i spent more than 3 hrs and i coundn't figure out or find any on the net. all what i need is...

LEARN ABOUT DEBIAN

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)

Shell Programming and Scripting