Can be used to test error handling Show Sample Output
There is no longer a need to add PGP keys for Ubuntu Launchpad PPA's. The add-apt-repository command creates a new file for the PPA in /etc/sources.list.d/ then adds the PPA's keys to the apt keyring automatically. No muss, no fuss.
View files in ZIP archive unzip -l files.zip
Select only the files with given name and copy them to /tmp/ folder.
Replace DOS character ^M with newline using perl inline replace.
Shorter version with curl and awk
There's nothing particularly novel about this combination of find, grep, and wc, I'm just putting it here in case I want it again. Show Sample Output
Shows useful informations about file descriptors in Squid web proxy Show Sample Output
Used by virtualbox and others to create '.run' file.
this command will add the following two lines into the ~/.bash_aliases: alias exit='pwd > ~/.lastdir;exit' [ -n "$(cat .lastdir 2>/dev/null)" ] && cd "$(cat .lastdir)" or redirect it to the ~/.bashrc if you like Donno, I find it usefull. You may also define an alias for 'cd ~' like - alias cdh='cd ~'
That's the key part. I got this from http://www.macosxhints.com/article.php?story=20070715091413640. See that article for other other, more basic, tcsh-specific history-related settings.
Replace sed regular expressions with perl patterns on the command line. The sed equivalent is: echo "sed -e"|sed -e 's/sed -e/perl -pe/' Show Sample Output
This command deletes the "newline" chars, so its output maybe unusable :)
with grep for em:name rather than name, you will get much better result. Show Sample Output
less ressources (processes) needed Show Sample Output
Given a dump.sql file, extract table1 creation and data commands. table2 is the one following table1 in the dump file. You can also use the same idea to extract several consecutive tables.
Problem: you want to output one line per file. you can't just 'tr -d' because you want one line per file and you don't want to use a loop. Solution: use awk to print each line without the record separator and a newline after each file. Show Sample Output
Use meaningful exit codes change "source" to "cat" to view output instead of assigning Show Sample Output
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