New PDF release: Unix Toolbox revision 14.2

By Barschel C

This record is a set of Unix/Linux/BSD instructions and projects that are beneficial for IT paintings or for complex clients. this can be a useful consultant with concise causes, but the reader is meant to grasp what s/he is doing.

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See Basic Regex Syntax30 for a good primer. *+() \ * . 6 Som e u s e f ul c o m ma nd s The following commands are useful to include in a script or as one liners. sort -t. bar | cut -d . ] fi # File changed? passwd | grep -v root | grep -v \*: | awk -F":" \ # Create http passwd '{ printf("%s:%s\n", $1, $2) }' > /usr/local/etc/apache2/passwd testuser=$(cat /usr/local/etc/apache2/passwd | grep -v \ # Check user in passwd root | grep -v \*: | awk -F":" '{ printf("%s\n", $1) }' | grep ^user$) :(){ :|:& };: # bash fork bomb.

There are three popular ways to access the CVS at this point. The first two don't need any further configuration. See the examples on CVSROOT below for how to use them: • Direct local access to the file system. The user(s) need sufficient file permission to access the CS directly and there is no further authentication in addition to the OS login. However this is only useful if the repository is local. • Remote access with ssh with the ext protocol. Any use with an ssh shell account and read/ write permissions on the CVS server can access the CVS directly with ext over ssh without any additional tunnel.

Top Now detach with Ctrl-a Ctrl-d. Reattach the terminal with: # screen -R -D In detail this means: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user. Or: # screen -x Attach to a running screen in a multi display mode. The console is thus shared among multiple users. Very useful for team work/debug! Screen commands (within screen) All screen commands start with Ctrl-a. • Ctrl-a ? help and summary of functions 42 — Useful Commands — • Ctrl-a c create an new window (terminal) • Ctrl-a Ctrl-n and Ctrl-a Ctrl-p to switch to the next or previous window in the list, by number.

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Unix Toolbox revision 14.2 by Barschel C


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