I have a line of sed code in a script that is to pull from a .txt file that looks like this: /dev/sda= 74 GB /dev/sdb= 74 GB drive1=`cat /tmp/drives.txt | sed -e 's/^.* \([[:digit:]]\{2,\}\) GB.*/\1/' ` drive2=`cat /tmp/drives.txt | sed -e 's/^.* \([[:digit:]]\{2,\}\) GB.*/\1/' ` echo "Drive 1 $drive1">>/tmp/mynewfile.txt echo "Drive 2 $drive2">>/tmp/mynewfile.txt The output looks like this: Drive 1 74 74 Drive 2 74 74 Is it possible to get sed to find the first digit, yank it as a variable and stop, then use sed to find the second digit yank it as a separate variable and stop? I want it to look like this Drive 1 74 Drive 2 74 I am only interested in that 74 really or 34 in some cases which is what I am really trying to find out
Try this: Code: sed -ne '/sda/s/^.* \([[:digit:]]\{2,\}\) GB.*/Drive 1 \1/p' /tmp/drives.txt >>/tmp/mynewfile.txt sed -ne '/sdb/s/^.* \([[:digit:]]\{2,\}\) GB.*/Drive 2 \1/p' /tmp/drives.txt >>/tmp/mynewfile.txt The leading /sda/ and /sdb/ are addresses--they mean the s command does not take effect unless the address matches. The -n switch causes nothing to be printed unless a 'p' flag takes affect (added at the end), which it doesn't unless the address matches.
It seems to be about the local HD, so this should work too: Code: df -h /dev/hda3 | awk 'NR == 2 {print "Drive 1 " $3}' Drive 1 17G and Code: df -h /dev/hda1 | awk 'NR == 2 {print "Drive 2 " $3}' Drive 1 13M just replace the hda1… with what ever you have/need Cheers
