xmengnet/the-art-of-command-line
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Merge pull request #1 from jlevy/master

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Dongliang Mu 2016-10-25 10:34:17 -04:00 committed by GitHub
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@ -113,7 +113,7 @@ Notes:
- See also `lsof` for open sockets and files.
- See `uptime` or `w` to know the how long the system has been running.
- See `uptime` or `w` to know how long the system has been running.
- Use `alias` to create shortcuts for commonly used commands. For example, `alias ll='ls -latr'` creates a new alias `ll`.
@ -193,7 +193,7 @@ Notes:
- For running a command as another user, use `sudo`. Defaults to running as root; use `-u` to specify another user. Use `-i` to login as that user (you will be asked for _your_ password).
- For switching the shell to another user, use `su username` or `su - username`. Include the `-` to get an environment as if the user just logged in. Omitting the username defaults to root. You will be asked for the password _of the user you are switching to_.
- For switching the shell to another user, use `su username` or `su - username`. The latter with "-" gets an environment as if another user just logged in. Omitting the username defaults to root. You will be asked for the password _of the user you are switching to_.
- Know about the [128K limit](https://wiki.debian.org/CommonErrorMessages/ArgumentListTooLong) on command lines. This "Argument list too long" error is common when wildcard matching large numbers of files. (When this happens alternatives like `find` and `xargs` may help.)