Scripts

Text with a grey background will vary between users and systems.

Text in a Courier/Serif-type font is to be typed at a terminal/command prompt.

Text inside [square brackets] is optional to the command and can be ignored or changed.

"example.net" is a fictitious domain.

Links to documentation

• bash scripting
• awk
• W3Schools Online Web Tutorials
• grep
• Regular expressions
• Command examples
• (Useful) Stupid Unix Tricks?

Examples

• find . -type d | xargs chmod o+xr
• find . -name *,v | xargs chmod -w
• du -hsx * | grep "[0-9]G" | sort -g
• mysql -u root -p -e "SELECT hostname FROM inventory.computers WHERE os LIKE 'Windows XP' ORDER BY hostname" | sed -e 's;| ;;g' -e '1d' | mail -s "Windows XP PCs on `date +%Y%m%d`" someone@example.com

• az
• bare_metal_backup
• bookmark_converter
• clock_drift_monitor
• ftp_mirror
• mysql_join

Tests

• -d file: True if the file exists and is a directory
• -e file: True if the file exists
• -f file: True if the file exists and is a regular file
• -r file: True if the file exists and is readable
• -s file: True if the file exists and has a size greater than zero
• -w file: True if the file exists and is writable
• -x file: True if the file exists and is executable
• -n string: True if the length of the string is non-zero
• -z string: True if the length of the string is zero

Windows versions

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