named forks – resource forks
mac 122 % ls -al *.dmg -rw-r--r-- 1 face staff 1189642 Nov 26 09:12 SQLGrinderPR3.dmg mac 123 % ls -al *.dmg/..namedfork/rsrc -rw-r--r-- 1 face staff 0 Nov 26 09:12 SQLGrinderPR3.dmg/..namedfork/rsrc mac 124 % ls -al *.dmg/..namedfork/data -rw-r--r-- 1 face staff 1189642 Nov 26 09:12 SQLGrinderPR3.dmg/..namedfork/data mac 125 % ls -al *.dmg/..namedfork/r ls: *.dmg/..namedfork/r: No such file or directory mac 126 %
From the Terminal app…
open .
to open the current directory in the Finder.
That’s open-space-period
Using Disk Utility from the startup cd, or booting to single-user mode (hold down command-s just after chime) and at the “#” prompt type “fsck -y” repeat that command until no errors are reported, then type “exit” your mac will continue to boot.
mac 131 work % [[ "a" > "A" ]] && echo fred fred mac 132 work % [[ "a" > "A" ]] || echo fred mac 133 work % [[ "a" > "A" ]] && [[ "a" < "n" ]] && echo fred fred mac 138 work % foo="9" mac 139 work % [[ "$foo" < "A" ]] && foo="defaultString" mac 140 work % echo $foo defaultString mac 141 work % foo=" Some String" mac 142 work % [[ "$foo" < "A" ]] && foo="defaultString" mac 143 work % mac 143 work % echo $foo defaultString mac 144 work % foo="Some String" mac 145 work % [[ "$foo" < "A" ]] && foo="defaultString" mac 146 work % echo $foo Some String mac 147 work % foo="" mac 148 work % [[ "$foo" < "A" ]] && foo="defaultString" mac 149 work % echo $foo defaultString mac 150 work %
basename and dirname are programs – read process creation. Shell substitution can be much quicker and far more obscure.
basename is ${ARG##*/}
dollar-leftcurlybrace-A-R-G-sharp-sharp-asterisk-slash-rightcurlybrace
dirname is ${ARG%/*}
dollar-leftcurlybrace-A-R-G-percent-slash-asterisk-rightcurlybrace
I set my prompt in .profile to
PS1="%m %! %c %# "; export PS1
which gives me host – command number – last part of path – # or % depending on root or not…
Get a name, dbkey, and email address from ldap
ldapsearch -hldap.arizona.edu -LLL -x
“(mail=*payne*@*arizona.edu)” dn mail
|
perl -p -i -e
‘ s/.*cn=(.*)+dbkey=([0-9]+),.*/1~2/; s/mail: (.*)/1/’
all of that on one line – or use the continuation characters
locked files got you down? might be immutable. see “chflags”
uchg set the user immutable flag (owner or super-user only)
The chflags command is your friend.
tell application "Terminal" do script with command "top -u -s10 10" set number of rows of window 1 to 18 set number of columns of window 1 to 80 set background color of window 1 to "black" set normal text color of window 1 to "yellow" set custom title of window 1 to "Top" set miniaturized of window 1 to true end tell