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
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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echo $(cat /tmp/foo | tr '\n' ' ' )
and also, you can make tr filter the contents of a file with a redirection:tr "\n" ' ' </tmp/foo
cat /tmp/foo | xargs