Commands by pholz (2)

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convert single digit to double digits
works only in zsh, requires autoload zmv

List Threads by Pid along with Thread Start Time
This command will list all threads started by a particular pid along with the start time of each thread. This is very valuable when diagnosing thread leaks.

Remove Thumbs.db files from folders

Use a var with more text only if it exists
See "Parameter Expansion" in the bash manpage. They refer to this as "Use Alternate Value", but we're including the var in the at alternative.

Adding formatting to an xml document for easier reading
This will indent the input to be more readable. Warnings and messages are not send to STDOUT so you can just use a pipe to create the formatted outputfile, like: $ tidy -i -xml in.xml > out.xml

Convert JSON to YAML

"Pretty print" $PATH, show directories in $PATH, one per line with replacement pattern using shell parameter expansion
Can be used to create path alias. From: https://www.cyberciti.biz/tips/bash-aliases-mac-centos-linux-unix.html. #9

Retrofit a shebang to an existing script
Function to add a shebang to an existing script, handy if you forgot to add it in the first place.

CLI Visual Apache Web Log Analyzer
GoAccess is an open source real-time Apache web log analyzer and interactive viewer that runs in a terminal in *nix systems. It provides fast and valuable HTTP statistics for system administrators that require a visual server report on the fly. http://goaccess.prosoftcorp.com/

Does a traceroute. Lookup and display the network or AS names and AS numbers.
From the man page. lft ? display the route packets take to a network host/socket using one of several layer-4 protocols and methods; optionally show heuristic network information in transitu -A Enable lookup and display of of AS (autonomous system) numbers (e.g., [1]). This option queries one of several whois servers (see options 'C' and 'r') in order to ascertain the origin ASN of the IP address in question. By default, LFT uses the pWhoIs service whose ASN data tends to be more accurate and more timely than using the RADB as it is derived from the Internet's global routing table. -N Enable lookup and display of network or AS names (e.g., [GNTY-NETBLK-4]). This option queries Prefix WhoIs, RIPE NCC, or the RADB (as requested). In the case of Prefix WhoIs or RADB, the network name is displayed. In the case of RIPE NCC, the AS name is displayed.

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