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2010-03-18 - Top 10 commands explained
There's a great article by Peteris Krumins explaining the current top 10 commands: http://www.catonmat.net/blog/top-ten-one-liners-from-commandlinefu-explained/
2010-03-03 - Commandlinefu @ SXSW 2010
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Commands tagged .bash_profile

Commands tagged .bash_profile from sorted by
Terminal - Commands tagged .bash_profile - 3 results
export PROMPT_COMMAND='if (($? > 0)); then echo -ne "\033[1;31m"; fi'; export PS1='[\[\]\u\[\033[0m\] \[\033[1;34m\]\w\[\033[0m\]]\$ '
2010-08-25 21:19:30
User: quintic
Functions: echo export
1

If the return code from the last command was greater than zero, colour part of your prompt red. The commands give a prompt like this:

[user current_directory]$

After an error, the "[user" part is automatically coloured red.

Tested using bash on xterm and terminal. Place in your .bashrc or .bash_profile.

declare -f [ function_name ]
alias nl2space="perl -ne 'push @F, \$_; END { chomp @F; print join(qq{ }, @F) , qq{\n};}' "
2009-10-01 02:22:23
User: relay
Functions: alias
-1

# newline to space; the whack before dollar-underbar is required

alias nl2space="perl -ne 'push @F, \$_; END { chomp @F; print join(qq{ }, @F) , qq{\n};}' "

# newline to comma; the whack before dollar-underbar is required

alias nl2,="perl -ne 'push @F, \$_; END { chomp @F; print join(qq{,}, @F) , qq{\n};}' "

PROMPT> cat /tmp/foo

foo-001

foo-002

foo-003

foo-004

foo-005

foo-006

foo-007

foo-008

foo-009

foo-010

# 'tr' does not give a newline after it run. Makes a messy commandline.

PROMPT> cat /tmp/foo|tr "\n" ' '

foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010 $PROMPT> tr "\n" ' ' /tmp/foo

# 'tr' does not take arguements

PROMPT> tr "\n" ' ' /tmp/foo

tr: extra operand `/tmp/foo'

Try `tr --help' for more information.

# 'nl2space' is a filter and takes arguements, adds a newline after it runs.

PROMPT> cat /tmp/foo| nl2space

foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010

PROMPT> nl2space /tmp/foo

foo-001 foo-002 foo-003 foo-004 foo-005 foo-006 foo-007 foo-008 foo-009 foo-010