General Command-line Tips - Revision history

Rf at 15:40, 14 September 2017

2017-09-14T15:40:04Z

Rf at 11:19, 7 December 2016

2016-12-07T11:19:40Z

Rf at 13:14, 8 November 2016

2016-11-08T13:14:27Z

Rf: Created page with "= Introduction= Tips for using the command line = GNU Parallel= To check the md5sums of a number of files according to a md5sum, one mat use this: cat ..."

2016-11-08T12:45:13Z

Created page with "= Introduction= Tips for using the command line = GNU Parallel= To check the md5sums of a number of files according to a md5sum, one mat use this: cat <file_with_md5sums>..."

New page

= Introduction=

Tips for using the command line

= GNU Parallel=

To check the md5sums of a number of files according to a md5sum, one mat use this:

cat <file_with_md5sums> |parallel --pipe -N1 md5sum -c

@@ Line 17: / Line 17: @@
 If you already have a t is also
   if [ -f /etc/bashrc ]; then
@@ Line 27: / Line 25: @@
      . /usr/local/Modules/3.2.10/init/.bashrc
   fi
 = GNU Parallel=

← Older revision		Revision as of 11:19, 7 December 2016
Line 2:		Line 2:

	Tips for using the command line		Tips for using the command line
		+
		+	= .bashrc =
		+
		+	This is a hidden (starts with a dot) file in your home directory which is used for holding various customisations in the shape of aliases and functions that minimise typing and make things faster.
		+
		+	For example, to obtain a long listing of all files in a directory from oldest to newest, the command is
		+	ls -altr
		+
		+	But you can include a line in your '''.bashrc''' like so
		+
		+	alias ltr='ls -altr'
		+
		+	which mean s
		+
		+	If you already have a t is also
		+
		+
		+
		+	if [ -f /etc/bashrc ]; then
		+	. /etc/bashrc
		+	fi
		+
		+	if [ -f /usr/local/Modules/3.2.10/init/.bashrc ]; then
		+	. /usr/local/Modules/3.2.10/init/.bashrc
		+	fi

	= GNU Parallel=		= GNU Parallel=

← Older revision		Revision as of 13:14, 8 November 2016
Line 8:		Line 8:

	cat <file_with_md5sums> \|parallel --pipe -N1 md5sum -c		cat <file_with_md5sums> \|parallel --pipe -N1 md5sum -c
		+
		+	(it would be nice to know the number of parallel processes this would generate)