2013-08-23 19:00:37 -04:00
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# To replace all occurrences of "day" with "night" and write to stdout:
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2013-08-21 00:17:52 -04:00
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sed 's/day/night/g' file.txt
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2013-08-11 15:37:11 -04:00
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2013-08-23 19:00:37 -04:00
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# To replace all occurrences of "day" with "night" within file.txt:
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2013-08-21 00:17:52 -04:00
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sed -i 's/day/night/g' file.txt
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2013-08-11 15:37:11 -04:00
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2013-08-23 19:00:37 -04:00
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# To replace all occurrences of "day" with "night" on stdin:
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2013-08-21 00:17:52 -04:00
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echo 'It is daytime' | sed 's/day/night/g'
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2013-08-27 00:06:30 +03:00
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# To remove leading spaces
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sed -i -r 's/^\s+//g' file.txt
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2013-08-31 12:46:33 +03:00
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# To remove empty lines
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cat file.txt | sed '/^$/d'
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