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Commands by relay from sorted by
Terminal - Commands by relay - 3 results
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

function checkfor () { while :; do $*; sleep 5; done; }
2009-09-03 19:35:42
User: relay
Functions: sleep
Tags: bash
1

checkfor: have the shell check anything you're waiting for.

'while : ; do' is an infinite loop

'$*' executes the command passed in

'sleep 5' - change for your tastes, sleep for 5 seconds

bash, ksh, likely sh, maybe zsh

Ctrl-c to break the loop

function fcd () { [ -f $1 ] && { cd $(dirname $1); } || { cd $1 ; } pwd }
2009-09-03 18:58:13
User: relay
Functions: cd dirname pwd
Tags: bash ksh
1

fcd : file change directory

A bash function that takes a fully qualified file path and cd's into the directory where it lives. Useful on the commadline when you have a file name in a variable and you'd like to cd to the directory to RCS check it in or look at other files associated with it.

Will run on any ksh, bash, likely sh, maybe zsh.