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How to show only next line after the matched one?
...t line after a match, then pipe the result to tail and only grab 1 line,
cat logs/info.log | grep "term" -A1 | tail -n 1
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python setup.py uninstall
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If this does not work, add sudo as follows: cat files.txt | xargs sudo rm -rf
– saroele
Feb 4 '14 at 22:13
22
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How to add “on delete cascade” constraints?
... 27 '12 at 19:29
Mike Sherrill 'Cat Recall'Mike Sherrill 'Cat Recall'
78.5k1616 gold badges103103 silver badges156156 bronze badges
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How do I trim whitespace from a string?
...ip()
'Hello'
>>> ' Hello'.strip()
'Hello'
>>> 'Bob has a cat'.strip()
'Bob has a cat'
>>> ' Hello '.strip() # ALL consecutive spaces at both ends removed
'Hello'
If you need only to remove one space however, you could do it with:
def strip_one_space(s):
if s.en...
Test if remote TCP port is open from a shell script
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As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:
nc -z <host> <port>
That way nc will only check if the port is open, exiting with 0 on success, 1 on failure.
For a quick interactive check (with a 5 seconds ti...
Split files using tar, gz, zip, or bzip2 [closed]
...e_1 my_large_file_2 | split -b 1024MiB - myfiles_split.tgz_
# uncompress
$ cat myfiles_split.tgz_* | tar xz
This solution avoids the need to use an intermediate large file when (de)compressing. Use the tar -C option to use a different directory for the resulting files. btw if the archive consists ...
Delete empty lines using sed
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@BenjaminW. Thanks for catching that. Those were not from the original author, but came from Edit 3 when it was changed from regular text to "code", which then "exposed" the `\` escaping. I have fixed them now.
– wisbucky
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Git Symlinks in Windows
... increased potential for repository pollution, or accidentally adding duplicate files while they're in their "Windows symlink" states. (More on this under "limitations" below.)
Yes, a post-checkout script is implementable! Maybe not as a literal post-git checkout step, but the solution below has met...
How to check if a variable is not null?
...swered Oct 12 '14 at 22:56
Flat CatFlat Cat
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How to simulate the environment cron executes a script with?
...porarily):
* * * * * env > ~/cronenv
After it runs, do this:
env - `cat ~/cronenv` /bin/sh
This assumes that your cron runs /bin/sh, which is the default regardless of the user's default shell.
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