February 2007 – Page 2 – Pario TechnoBlob

Linux

Dump/image CDROM to ISO file

dd if=/dev/cdrom of=/path/til/ISO-fil

Linux

Replace all instances of one word with another in a file

sed -i ‘s/ord1/ord2/g’ filnavn

Linux

Remove comments and blank lines from a file

sed -i ‘/.*#/d;/^*$/d’ filnavn

Linux

Convert DOS Carriage Return file to Unix Line feed file

tr ‘\r’ ‘\n’ < sourcefile_dos.txt > resultfile_unix.txt An alternative is to use the program hd2u which is a DOS < –> Unix convertor dos2unix -U 2006-12.md5 Converts from DOS to Unix, doing a Unix to DOS use the -D switch.

Linux

Copy several files to a new filename

for f in *.dist; do cp $f `basename $f .dist`; done