Version 1.0.5, July 2017

clerr [-1hV] [-c COLOR] COMMAND [ARGUMENTS...]

clerr is a command line tool which executes another COMMAND and colorizes all error output (on stderr) of that program while its normal output (on stdout) will be printed in the default colors.

$ make
# make install

This will compile the binary and copy it to /usr/local/bin/clerr. The man page will be copied to /usr/local/share/man/man.1/clerr.1.gz.

• -1
  All output will be printed on stdout only, even error output (which will still get colorized).

• -c COLOR
  Sets the color for error output. Default is red. Valid colors and their valid abbreviations are:

  red/re/rd, green/gr/gn, blue/bl, yellow/ye/yw, cyan/cy/cn, white/wh.

• -h
  Prints a short help summary and exits.

• -V
  Prints the program version and exits.

clerr will exit with the same status as COMMAND, if it was executed successfully. If the command was terminated due to a signal, clerr will kill itself with the same signal. Otherwise, clerr will return one of these special exit status values:

• 1
  invocation error (e.g. syntax error or unknown option)
• 124
  COMMAND could not be executed
• 125
  internal error (e.g. could not fork)

• clerr cat /etc/group-
  This will display the file /etc/group- in standard colors. If the file does not exist or the caller is not permitted to read this file, the corresponding error message (something like "cat: /etc/group-: No such file or directory") will be printed in red.
• clerr make
  Run make in the current directory. Any compiling errors will be printed in red.

GNU GPL v3

Maximilian Eul <[email protected]>