Commands by tamouse (7)
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This one is a bit more robust -- the remote machine may not have an .ssh directory, and it may not have an authorized_keys file, but if it does already, and you want to replace your ssh public key for some reason, this will work in that case as well, without duplicating the entry.
4cat ~/.ssh/id_rsa.pub | ssh <REMOTE> "(cat > tmp.pubkey ; mkdir -p .ssh ; touch .ssh/authorized_keys ; sed -i.bak -e '/$(awk '{print $NF}' ~/.ssh/id_rsa.pub)/d' .ssh/authorized_keys; cat tmp.pubkey >> .ssh/authorized_keys; rm tmp.pubkey)" -
like #9295, but awkish instead of perlish
-1tail -f LOGFILE | awk '{system("say \"" $0 "\"");}' -
say only processes a complete file, at eof, so following a file isn't possible. Quick and dirty perl oneliner to feed each line from the tail -f to say. Yes, expensive to lauch a new process each line. This little ditty was prompted by a discussion on how horrible it is to use VoiceOver on ncurses programs such as irssi.
0tail -f LOGFILE | perl -ne '`say "$_"`;' -
Find which directories on your system contain a lot of files. Edit: much shorter and betterer with -n switch. Show Sample Output
0sudo find / -type f | perl -MFile::Basename -ne '$counts{dirname($_)}++; END { foreach $d (sort keys %counts) {printf("%d\t%s\n",$counts{$d},$d);} }'|sort -rn | tee /tmp/sortedfilecount.out | head -
PmWiki stores wiki pages as Group.Name. Simply split the directory listing and count frequency of group occurances. Show Sample Output
-2cd /path/to/pmwiki/wiki.d;/bin/ls -1 | perl -ne 'my ($group,$name)=split(/\./);$counts{$group}++;' -e 'END { foreach $group (sort keys %counts) {printf("%d\t%s\n",$counts{$group},$group);} }'|sort -rn -
Similar, but uses tarball instead of zip file
-1git archive HEAD | gzip > ~/Dropbox/archive.tar.gz -
previous version leaves lots of blank lines
1awk 'BEGIN{IGNORECASE=1;FS="<title>|</title>";RS=EOF} {print $2}' | sed '/^$/d' > file.html
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