Package: file Version: 1:5.24-2 Severity: important "file" mistakes some text as bitmap:
$ echo P1788 | file - /dev/stdin: , bitmap, ASCII text $ printf "P1788\n82541 2015\n" | file - /dev/stdin: Netpbm PPM image data, size = 82541 x 2015, bitmap, ASCII text Such false positives prevent text files from being viewed by "less" when using a filter. -- System Information: Debian Release: stretch/sid APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.1.0-2-amd64 (SMP w/8 CPU cores) Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages file depends on: ii libc6 2.19-20 ii libmagic1 1:5.24-2 ii zlib1g 1:1.2.8.dfsg-2+b1 file recommends no packages. file suggests no packages. -- no debconf information