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Commands using col from sorted by
Terminal - Commands using col - 7 results
col() { awk '{print $('$(echo $* | sed -e s/-/NF-/g -e 's/ /),$(/g')')}'; }
2014-06-05 18:01:31
User: tekniq
Functions: awk col echo sed
0

Something I do a lot is extract columns from some input where cut is not suitable because the columns are separated by not a single character but multiple spaces or tabs. So I often do things like:

... | awk '{print $7, $8}'

... which is a lot of typing, additionally slowed down when typing symbols like '{}$ ... Using the simple one-line function above makes it easier and faster:

... | col 7 8

How it works:

The one-liner defines a new function with name col

The function will execute awk, and it expects standard input (coming from a pipe or input redirection)

The function arguments are processed with sed to use them with awk: replace all spaces with ,$ so that for example 1 2 3 becomes 1,$2,$3, which is inserted into the awk command to become the well formatted shell command: awk '{print $1,$2,$3}'

Allows negative indexes to extract columns relative to the end of the line.

Credit: http://www.bashoneliners.com/oneliners/oneliner/144/

man bash | col -b
2009-09-10 00:45:27
User: suxer
Functions: bash col man
-11

Display man page in plain text

man perlcheat | col -b > perlcheat.txt
man ls | col -b > ~/Desktop/man_ls.txt
2009-06-13 11:49:33
User: vigo
Functions: col ls man
13

You can convert any UNIX man page to .txt

cat typescript | perl -pe 's/\e([^\[\]]|\[.*?[a-zA-Z]|\].*?\a)//g' | col -b > typescript-processed
alias vb='vim ~/.bashrc; source ~/.bashrc'
2009-03-02 21:01:49
User: haivu
Functions: alias col groff man
2

Place the line above in your ~/.bahsrc file. Now every time you issue the 'vb' command, you invoke the vim editor to edit it, then source it so the changes take effect immediately.

Notes:

* This mechanism is not working well if your .bashrc contains commands that should not be sourced more than once.

* This trick also work for your csh or tclsh users: place the following line in your ~/.cshrc file:

alias vc 'vim ~/.cshrc; source ~/.cshrc

Thank you adzap for pointing out the missing quote

nroff -u0 -Tlp -man /usr/openwin/man/man1/Xsun.1 | col -x | less
2009-02-07 18:40:43
User: mnikhil
Functions: col
1

Using nroff , it is possible to view the otherwise garbled man page with col command.