wolfgang@mgm.mit.edu (Wolfgang Rupprecht) (08/16/89)
Here is a new puzzler. Observed on a sun3 w. sunos 3.4. I have a
piped command line passed to /bin/sh in a script for frobbing the RCS
command "ci". (The script, in theory, checks in all RCS-ed files in a
subtree.) The pipe sometimes breaks with a partial line making it to
the last section of the pipe and execution stopping prematurely. When
run one piece at a time it always works. The script breaking is
probabalistic. One observed "fact" is that the breakage is usually
within a half screen of ci barfing about something.
Any hints how even to get a handle on this? I'm curious how other
folks deal with bugs of this type.
This is the script:
#!/bin/sh
DIR=`cd ${1-.}; pwd` # conv to abs path
find $DIR -name "RCS" -print | sed -e 's:/RCS$::' \
-e 's:.*:cd & ; ci RCS/*:' | /bin/sh -sx
-wolfgang
Wolfgang Rupprecht ARPA: wolfgang@mgm.mit.edu (IP 18.82.0.114)
TEL: (703) 768-2640 UUCP: mit-eddie!mgm.mit.edu!wolfgang