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Ever tried to copy or move a bunch of files on unix/linux from one location to another and see this error message spit out back at you?? $ cp /var/www/* /var/tmp UNIX find to the rescue… $ find /var/www -type f -name ‘*’ -exec cp {} /var/tmp/. \; problem solved!  I constantly connect to linux or unix machines using ssh and it can get a little bothersome typing out the IP address repeatedly. Here is the typical syntax to connect to a linux box (random IP address) ssh username@111.11.11.1 Now imagine typing this again and again. Thats where the ssh config file comes to the rescue. You [...] One of the most common programs on Linux systems for packaging files is the venerable tar. tar is short for tape archive, and originally, it would archive your files to a tape device. Now, you’re more likely to use a file to make your archive. To use a tarfile, use the command-line option -f . [...] It is easy to send a text file as the body of an email from UNIX. You can do it using the command below mail -s "Email with file as body" email@domain.com < message.txt Now if you want to send a file as an attachment, you would need to use uuencode piped to mail. This file can [...] The comment symbol for Unix scripts is typically “#”. You can use the same concept for files for other programming languages. My vi commands below use the “#” symbol. Go to the first line you want to comment UNIX supports a wide variety of directory-navigation tools. Two good tools are pushd and popd.You’re certainly aware that the cd command changes your current directory. What happens if you have several directories to navigate, but you want to be able to quickly return to a location? The pushd and popd commands create a virtual [...] Here is another great tip from IBM. I love this. The !$ command returns the last argument used with a command. But what happens if you have a command that used arguments and you want to reuse just one of them? The !:1 operator returns the argument used in a command. The example in [...] This post is from Unix tips from IBM. What happens if you’re using the same file name for a series of commands? Well, there’s a shortcut that can quickly retrieve the last file name you used.What happens if you’re using the same file name for a series of commands? Well, there’s a shortcut that can [...] I keep forgetting the correct syntax…. % script 2>& logfile There are so many little things to remember in this command that I always have to lookup what switches to use. So here are a few ways of using find To find all files modified in the last 24 hours (last full day) in current directory and its sub-directories: find . -mtime -1 -print Flag -mtime -1 option [...] |
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