i need to split this file into two files. Any entries where the first number ($1) is in more than once needs to go in file1.txt. Any entries that only occur once need to go into file2.txt, like so:
File1.txt
Code:
613212, 36, 57
613212, 36, 10
613212, 36, 10
File2.txt
Code:
677774, 36, 57
619900, 10, 10
Any solution to this problem would be greatly appreciated, no matter how implemented.
however, i would like to get experience using arrays so a solution incorporating them would be fantastic. i've experimented with them, like this, but cant get my head around them.
Code:
awk ' { arr[$0]++ } END { for( str in arr ) { if ( arr[str] = 1 ) print str " " arr[str] } } ' /directory/mainfile.txt | >/directory/file1.txt
awk ' { arr[$0]++ } END { for( str in arr ) { if ( arr[str] > 1 ) print str " " arr[str] } } ' /directory/mainfile.txt | >/directory/file2.txt
It's a botch job and not surprisingly doesnt work. even if it did, how do i specify $1 and only $1 as the thing to look at, instead of a string?
Cheers,
Ian
Last edited by Scott; 02-04-2011 at 12:05 PM..
Reason: Please use code tags
Hi,
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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)
02-04-2011
