On Thu, Apr 16, 2015 at 6:51 PM, Guillermo Buritica Tobon < gburitic...@gmail.com> wrote:
> Hi All. > > H have the next bash script code.: > > #!/bin/sh > # Pring OK on empty input, > # Print input on non-empty input > > read INPUT > if [ -z "$INPUT" ]; then > echo OK > else > echo $INPUT > while read INPUT; do > echo $INPUT > done > fi > > > The function read one input and print the input or print "OK" if the input > is enpty > > Example correct use: > > echo "Hello World" | ~/OkIfNoInput.sh > Hello World > > echo "" | ~/OkIfNoInput.sh > OK > > The ISSUE is when the string Contain "*" the results are very estrange. or > "*[space]" > > echo "* Hello World *" | ~/OkIfNoInput.sh > forensic orbit-gtobon postgresql-2015-04-13_000000.log qt_temp.kn3231 > qt_temp.Lh3231 qt_temp.nS3231 qt_temp.T28137 query.html server.log > smartgrep_60863524962e4077d558766bf2f79235a373cae448da3e11b384b37e7d2f1ea8 > ssh-Mxs2Qb6AhJxc systemd-private-1AfwYz systemd-private-2stQfP > systemd-private-2ytw5H systemd-private-3xYsUI systemd-private-44tvlt > systemd-private-4FOgxG systemd-private-cfGpBQ systemd-private-d6PHV1 > systemd-private-EQaIzh systemd-private-FZx2ad systemd-private-GJzO5O > systemd-private-GTYlPD systemd-private-H72F9i systemd-private-I6N6mv > systemd-private-isBta7 systemd-private-m70a9b systemd-private-missS7 > systemd-private-mPbVbC systemd-private-noY0rf systemd-private-nZbmwS > systemd-private-obDFE9 systemd-private-OfXH6S systemd-private-P6I7QK > systemd-private-PI2Kf0 systemd-private-Q8dNwo systemd-private-qiMHMr > systemd-private-QiOvUZ systemd-private-RO0WgV systemd-private-t2Slaz > systemd-private-UH50C8 systemd-private-yJIqqS tt.txt > zabbix_server_5662.pinger zabbix_server_5680.pinger Hello World forensic > orbit-gtobon postgresql-2015-04-13_000000.log qt_temp.kn3231 qt_temp.Lh3231 > qt_temp.nS3231 qt_temp.T28137 query.html server.log > smartgrep_60863524962e4077d558766bf2f79235a373cae448da3e11b384b37e7d2f1ea8 > ssh-Mxs2Qb6AhJxc systemd-private-1AfwYz systemd-private-2stQfP > systemd-private-2ytw5H systemd-private-3xYsUI systemd-private-44tvlt > systemd-private-4FOgxG systemd-private-cfGpBQ systemd-private-d6PHV1 > systemd-private-EQaIzh systemd-private-FZx2ad systemd-private-GJzO5O > systemd-private-GTYlPD systemd-private-H72F9i systemd-private-I6N6mv > systemd-private-isBta7 systemd-private-m70a9b systemd-private-missS7 > systemd-private-mPbVbC systemd-private-noY0rf systemd-private-nZbmwS > systemd-private-obDFE9 systemd-private-OfXH6S systemd-private-P6I7QK > systemd-private-PI2Kf0 systemd-private-Q8dNwo systemd-private-qiMHMr > systemd-private-QiOvUZ systemd-private-RO0WgV systemd-private-t2Slaz > systemd-private-UH50C8 systemd-private-yJIqqS tt.txt > zabbix_server_5662.pinger zabbix_server_5680.pinger > > > echo "*" | ~/OkIfNoInput.sh > forensic orbit-gtobon postgresql-2015-04-13_000000.log qt_temp.kn3231 > qt_temp.Lh3231 qt_temp.nS3231 qt_temp.T28137 query.html server.log > smartgrep_60863524962e4077d558766bf2f79235a373cae448da3e11b384b37e7d2f1ea8 > ssh-Mxs2Qb6AhJxc systemd-private-1AfwYz systemd-private-2stQfP > systemd-private-2ytw5H systemd-private-3xYsUI systemd-private-44tvlt > systemd-private-4FOgxG systemd-private-cfGpBQ systemd-private-d6PHV1 > systemd-private-EQaIzh systemd-private-FZx2ad systemd-private-GJzO5O > systemd-private-GTYlPD systemd-private-H72F9i systemd-private-I6N6mv > systemd-private-isBta7 systemd-private-m70a9b systemd-private-missS7 > systemd-private-mPbVbC systemd-private-noY0rf systemd-private-nZbmwS > systemd-private-obDFE9 systemd-private-OfXH6S systemd-private-P6I7QK > systemd-private-PI2Kf0 systemd-private-Q8dNwo systemd-private-qiMHMr > systemd-private-QiOvUZ systemd-private-RO0WgV systemd-private-t2Slaz > systemd-private-UH50C8 systemd-private-yJIqqS tt.txt > zabbix_server_5662.pinger zabbix_server_5679.pinger > > > > This is an expected result? > I'm doing something wrong? > Or is this a bug in bash? > > > > Kind Regards > > > Guillermo Buritica T. > Always quote your variables. The problem comes from echo $INPUT which should be echo $INPUT -- Visit serverfault.com to get your system administration questions answered.
