http://onelinercode.wordpress.com One line code examples Thu, 23 Jun 2011 19:57:35 +0000 en hourly 1 http://wordpress.com/ http://s2.wp.com/i/buttonw-com.png http://onelinercode.wordpress.com http://onelinercode.wordpress.com/2011/03/12/sed-cut-replacement-everything-in-a-csv-except-second-field/ http://onelinercode.wordpress.com/2011/03/12/sed-cut-replacement-everything-in-a-csv-except-second-field/#comments Sat, 12 Mar 2011 16:14:02 +0000 freegnu http://onelinercode.wordpress.com/?p=120 ]]>
sed -ne 's/[^,]*,//2p'


Filed under: Uncategorized ]]> http://onelinercode.wordpress.com/2011/03/12/sed-cut-replacement-everything-in-a-csv-except-second-field/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/11/sed-as-grep-and-cut-replacement/ http://onelinercode.wordpress.com/2011/03/11/sed-as-grep-and-cut-replacement/#comments Fri, 11 Mar 2011 14:02:39 +0000 freegnu http://onelinercode.wordpress.com/?p=116 ]]>
sed -ne '/key=/{s/^.*=//,s%/%\\/%g;p}'


Filed under: Uncategorized ]]> http://onelinercode.wordpress.com/2011/03/11/sed-as-grep-and-cut-replacement/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/10/awk-multiline-csv-flattener/ http://onelinercode.wordpress.com/2011/03/10/awk-multiline-csv-flattener/#comments Thu, 10 Mar 2011 13:55:21 +0000 freegnu http://onelinercode.wordpress.com/?p=113 ]]>
awk 'BEGIN{RS="";FS=",[\n]*";OFS="";ORS=""}{for(i=1;i<NF;i++) print $i ",";print $NF "\n"}'


Filed under: Uncategorized ]]> http://onelinercode.wordpress.com/2011/03/10/awk-multiline-csv-flattener/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/09/awk-verbose-multiline-record-flattener/ http://onelinercode.wordpress.com/2011/03/09/awk-verbose-multiline-record-flattener/#comments Wed, 09 Mar 2011 13:50:56 +0000 freegnu http://onelinercode.wordpress.com/?p=110 ]]>
awk 'NF > 0{printf $0};NF == 0{printf "\n"}'


Filed under: awk Tagged: awk ]]> http://onelinercode.wordpress.com/2011/03/09/awk-verbose-multiline-record-flattener/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/08/awk-combine-multiline-records-separated-by-a-blank-line/ http://onelinercode.wordpress.com/2011/03/08/awk-combine-multiline-records-separated-by-a-blank-line/#comments Wed, 09 Mar 2011 02:04:45 +0000 freegnu http://onelinercode.wordpress.com/?p=108 ]]>
awk '{printf FS?$0:"\n"}'


Filed under: awk Tagged: awk ]]> http://onelinercode.wordpress.com/2011/03/08/awk-combine-multiline-records-separated-by-a-blank-line/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/04/python-2-print-headers-and-content-of-url/ http://onelinercode.wordpress.com/2011/03/04/python-2-print-headers-and-content-of-url/#comments Fri, 04 Mar 2011 11:00:28 +0000 freegnu http://onelinercode.wordpress.com/?p=106 ]]>
python -c 'import urllib2; resp = urllib2.urlopen("http://localhost:10888/cgi-bin/hello.py"); print resp.info(), resp.read()'


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/03/04/python-2-print-headers-and-content-of-url/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/03/python-3-print-headers-and-content-of-url/ http://onelinercode.wordpress.com/2011/03/03/python-3-print-headers-and-content-of-url/#comments Thu, 03 Mar 2011 12:00:08 +0000 freegnu http://onelinercode.wordpress.com/?p=104 ]]>
python3 -c 'import urllib.request; resp = urllib.request.urlopen("http://localhost:10888/cgi-bin/hello.py"); print(resp.info(), resp.read().decode("utf-8"))'


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/03/03/python-3-print-headers-and-content-of-url/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/03/02/python-3-cgi-web-server-with-cgi-bin-directory/ http://onelinercode.wordpress.com/2011/03/02/python-3-cgi-web-server-with-cgi-bin-directory/#comments Wed, 02 Mar 2011 16:59:41 +0000 freegnu http://onelinercode.wordpress.com/?p=100 ]]>
python3 -c 'import http.server; http.server.HTTPServer(("", 10888), http.server.CGIHTTPRequestHandler).serve_forever()'


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/03/02/python-3-cgi-web-server-with-cgi-bin-directory/feed/ 3 freegnu http://onelinercode.wordpress.com/2011/03/01/python-cgi-web-server-with-cgi-bin-and-htbin/ http://onelinercode.wordpress.com/2011/03/01/python-cgi-web-server-with-cgi-bin-and-htbin/#comments Tue, 01 Mar 2011 13:50:55 +0000 freegnu http://onelinercode.wordpress.com/?p=96 ]]>
python -m CGIHTTPServer 10080


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/03/01/python-cgi-web-server-with-cgi-bin-and-htbin/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/02/28/python-3-web-server-the-current-directory/ http://onelinercode.wordpress.com/2011/02/28/python-3-web-server-the-current-directory/#comments Mon, 28 Feb 2011 13:00:45 +0000 freegnu http://onelinercode.wordpress.com/?p=94 ]]>
python3 -m http.server 10030


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/02/28/python-3-web-server-the-current-directory/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/02/27/python-web-server-the-current-directory/ http://onelinercode.wordpress.com/2011/02/27/python-web-server-the-current-directory/#comments Sun, 27 Feb 2011 14:00:32 +0000 freegnu http://onelinercode.wordpress.com/?p=92 ]]>
python -m SimpleHTTPServer 10080


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/02/27/python-web-server-the-current-directory/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/02/26/python-as-a-shell/ http://onelinercode.wordpress.com/2011/02/26/python-as-a-shell/#comments Sat, 26 Feb 2011 20:09:35 +0000 freegnu http://onelinercode.wordpress.com/?p=87 ]]>
ipython -p pysh


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/02/26/python-as-a-shell/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/02/25/reversing-a-string-in-python-version-special-case/ http://onelinercode.wordpress.com/2011/02/25/reversing-a-string-in-python-version-special-case/#comments Fri, 25 Feb 2011 17:10:49 +0000 freegnu http://onelinercode.wordpress.com/?p=79 ]]>
python -c 'print "The rain in spain."[::-1]'


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/02/25/reversing-a-string-in-python-version-special-case/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/02/24/reversing-a-string-in-python-version-after-sleeping-on-it/ http://onelinercode.wordpress.com/2011/02/24/reversing-a-string-in-python-version-after-sleeping-on-it/#comments Thu, 24 Feb 2011 17:08:09 +0000 freegnu http://onelinercode.wordpress.com/?p=76 ]]>
python -c 'print "The rain in spain."[-1::-1]'


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/02/24/reversing-a-string-in-python-version-after-sleeping-on-it/feed/ 0 freegnu http://onelinercode.wordpress.com/2011/02/23/reversing-a-string-in-python-version-the-first/ http://onelinercode.wordpress.com/2011/02/23/reversing-a-string-in-python-version-the-first/#comments Wed, 23 Feb 2011 22:40:39 +0000 freegnu http://onelinercode.wordpress.com/?p=73 ]]>
python -c 's = "The rain in spain falls mainly on the plain."; print "".join(s[c] for c in xrange(len(s) - 1, -1, -1))'


Filed under: python Tagged: python ]]> http://onelinercode.wordpress.com/2011/02/23/reversing-a-string-in-python-version-the-first/feed/ 6 freegnu http://onelinercode.wordpress.com/2010/07/05/bash-hello-open-tcp-ports/ http://onelinercode.wordpress.com/2010/07/05/bash-hello-open-tcp-ports/#comments Mon, 05 Jul 2010 13:45:39 +0000 freegnu http://onelinercode.wordpress.com/2010/07/05/bash-hello-open-tcp-ports/ ]]> bash -c 'for n in $(seq 1 1024);do (echo </dev/tcp/localhost/$n) &</dev/null && echo $n open;done'

Filed under: bash Tagged: bash ]]> http://onelinercode.wordpress.com/2010/07/05/bash-hello-open-tcp-ports/feed/ 0 freegnu http://onelinercode.wordpress.com/2008/11/05/python-list-sort/ http://onelinercode.wordpress.com/2008/11/05/python-list-sort/#comments Wed, 05 Nov 2008 18:51:36 +0000 freegnu http://onelinercode.wordpress.com/2008/11/05/python-list-sort/ ]]> python -c 'x=["hello","my","friend"];x.sort();print x'

Posted in python Tagged: python ]]> http://onelinercode.wordpress.com/2008/11/05/python-list-sort/feed/ 1 freegnu http://onelinercode.wordpress.com/2008/10/24/perl-one-liners-begin-with-e/ http://onelinercode.wordpress.com/2008/10/24/perl-one-liners-begin-with-e/#comments Fri, 24 Oct 2008 20:42:34 +0000 freegnu http://onelinercode.wordpress.com/2008/10/24/perl-one-liners-begin-with-e/ ]]> perl -e '$hw="hello world";$hw=~s/^(h)([^w]*)(w)(.*)$/H$2W$4\n/;print $hw'

Posted in perl Tagged: perl ]]> http://onelinercode.wordpress.com/2008/10/24/perl-one-liners-begin-with-e/feed/ 0 freegnu http://onelinercode.wordpress.com/2008/10/21/sed-one-liners-begin-with-e/ http://onelinercode.wordpress.com/2008/10/21/sed-one-liners-begin-with-e/#comments Wed, 22 Oct 2008 04:41:19 +0000 freegnu http://onelinercode.wordpress.com/2008/10/21/sed-one-liners-begin-with-e/ ]]> sed -e '/World/s/.*/!/' <<<"Hello World"

Posted in sed Tagged: sed ]]> http://onelinercode.wordpress.com/2008/10/21/sed-one-liners-begin-with-e/feed/ 0 freegnu http://onelinercode.wordpress.com/2008/10/21/awk-one-liners-expect-a-code-block/ http://onelinercode.wordpress.com/2008/10/21/awk-one-liners-expect-a-code-block/#comments Wed, 22 Oct 2008 04:05:56 +0000 freegnu http://onelinercode.wordpress.com/2008/10/21/awk-one-liners-expect-a-code-block/ ]]> awk '/Hello/ {print $1,$2"!"}' <<<"Hello World"

Posted in awk Tagged: awk ]]> http://onelinercode.wordpress.com/2008/10/21/awk-one-liners-expect-a-code-block/feed/ 0 freegnu