while read line stops after first iteration [duplicate]
Redirect your inner command's stdin from /dev/null:
svmatch $line </dev/nullOtherwise, svmatch is able to consume stdin (which, of course, is the list of remaining lines).
The other approach is to use a file descriptor other than the default of stdin:
#!/bin/shwhile IFS= read -r line <&3; do svmatch "$line"done 3<svr_input...if using bash rather than /bin/sh, you have some other options as well; for instance, bash 4.1 or newer can allocate a free file descriptor, rather than requiring a specific FD number to be hardcoded:
#!/bin/bashwhile IFS= read -r -u "$fd_num" line; do do-something-with "$line"done {fd_num}<svr_input