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useful shell commands, sed replace, mongodb log
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| perl -ne '/([0-9a-z]{24,24})/ and print $1, "\n"' 01_07.txt | |
| # run command with only 1 argument (-L 1, --max-lines 1) and ask before each command | |
| ls -la | xargs --interactive -L 1 echo | |
| # substitution in xargs | |
| xargs -L 1 -I{} echo "ID IS: {}" | |
| sed -i -e s/\,\.\$comment:.\".*\"// mongodb_short_sed.log |
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